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The Diamond Dust Conspiracy: The Great Baroda Whodunit

  • Sheel Shah
  • May 1
  • 7 min read

Updated: May 12

After eight years in a Padra prison for attempting to poison his brother, Malharrao Gaekwad found his kismet finally coming around.  When his brother, Khanderao II, died without a male heir in 1870, Malharrao became the legal successor. The succession remained in limbo while Khanderao’s widow, Jamnabai, was pregnant. It wasn't until July 5, 1871, when she gave birth to a daughter, Tarabai, that Malharrao’s path to the throne was finally cleared.   


The Shadow of the Residency

In 1873, the British tightened their grip by appointing Colonel Robert Phayre to the Baroda Residency.  The Residency was the nerve center of British Paramountcy. Although Baroda was technically self-governing, the Resident functioned as the power behind the throne:

  • The Resident’s suggestions were treated as laws; defiance invited the Crown’s wrath.

  • He monitored Baroda’s "tribute" payments, using any perceived recklessness as grounds for intervention.

  • Under the guise of "mismanagement," the British could strip a King of his power or force him into exile.


The Final Climax

The tension between the Maharaja and the rigid Colonel Phayre reached a breaking point. In 1875—only four years after his coronation and eighteen months after Phayre’s arrival—Malharrao’s past seemed to repeat itself. He was arrested on a shocking charge: the attempted murder of Colonel Phayre using a lethal concoction of arsenic and diamond dust.


A Reign of Excess and Terror

Malharrao’s rule quickly descended into a spectacle of fiscal madness and cruelty. Driven by a desperate need to outshine his late brother, he treated the state treasury as a personal piggy bank for his eccentricities.  Malharrao’s spending was as legendary as it was nonsensical.  He commissioned ceremonial cannons made of solid gold and silver—dazzling to look at, but useless for war.  In a peak of absurdity, he spent lavishly on a state wedding for his pet pigeons.  His behavior clashed hard with Colonel Robert Phayre—a man defined by rigid military discipline.



To fund his whims, Malharrao turned his hand against his own people. He systematically seized ancestral lands and silenced dissent with brutal public floggings for even the smallest slights.  However, his most haunting legacy was the systemic abduction of women. His agents were known to seize women for the palace by force, creating such a culture of terror that citizens would hide their families the moment they heard the Maharaja’s carriage approaching.


This volatile mix of "tyranny" and financial ruin alienated the local nobility and left Baroda in shambles. For the British, Malharrao’s behavior wasn't just a moral failure—it was the perfect "administrative ammunition" they needed to justify stripping him of his power. 


As Malharrao’s tyranny grew, legal approaches to gain back seizures grew.   Bhau Poonekar, a lawyer representing dispossessed nobles and bankers, saw a secondary opportunity to help his clients.  To bypass palace security, Poonekar bribed the Residency’s head peon, Rowji, gaining nearly unrestricted access to British officials. He then positioned himself as the primary informant for Colonel Phayre. By funneling a steady stream of palace gossip and servant complaints to the Residency, Poonekar fed Phayre the exact evidence he needed to build a case of "mismanagement" against the King. This arrangement created a powerful feedback loop: Phayre received intelligence to justify his "tyranny" narrative, while Poonekar gained the British protection necessary to systematically undermine the Maharaja’s authority.



A Toxic Rivalry

The relationship between the Maharaja and the Resident was a collision of two incompatible worlds.  Phayre was a humorless officer who treated the Maharaja like a subordinate soldier rather than a sovereign. He famously refused to follow court etiquette, an insult that stung the proud Gaekwad.  While the British Crown preferred "indirect rule" (monitoring from a distance), Phayre was obsessively combative. He fixated on every minute detail of palace corruption.

Phayre’s superiors in London and Calcutta eventually grew frustrated, viewing his reports as "petty and vicious." Instead of maintaining a stable diplomatic presence, Phayre’s constant antagonism bypassed traditional diplomacy, effectively forcing a confrontation that neither government was quite ready for.


The Deadline and the Poisoned Sherbet

By 1873, the British government had seen enough. A formal commission confirmed Malharrao’s mismanagement but acknowledged that no progress could be made as long as he and Colonel Phayre were at each other’s throats.

The British issued an ultimatum: Malharrao had until December 31, 1875, to reform his tax system and end human rights abuses, or lose his throne. To give reform a chance, the Viceroy ordered Phayre’s removal. Phayre stubbornly refused to resign, forcing the Viceroy to officially "transfer" him in early November 1874. Through his own network of spies, Malharrao likely knew his rival was already on his way out.


The Attempted Assassination

On November 9, 1874, just days before his departure, Phayre took a sip of his daily pummelo (grapefruit) sherbet and noticed a strange, "gritty" taste. He threw out the liquid, but saved the glass for analysis. The results were chilling: the glass contained traces of arsenic and diamond dust.

Historical Note: At the time, diamond dust was falsely believed to be a "silent killer" that would physically shred the stomach lining from within.


The Investigation: A House of Cards

The British didn't have to look far for suspects. They targeted the Residency staff, and the pressure soon broke two workers: Rowji (a guard) and Nursoo.  Rowji admitted to lacing the drink, claiming he was bribed by the Maharaja’s inner circle.  Investigators found Rowji in possession of expensive jewelry and cash that far exceeded a servant’s wages.

The British then arrested Malharrao’s private secretary, Damodar Pant. After two weeks in solitary confinement, Pant was offered full immunity. He confessed that he had distributed the poisons under the direct orders of the Maharaja.



A Clash of Jurisdictions

Malharrao was taken into custody, but his trial presented a legal nightmare. While Baroda had its own courts, the British invoked Paramountcy, arguing that a local court could not impartially judge a King accused of attacking a British Resident.  The British bypassed Baroda’s legal system entirely, creating an ad hoc Commission of Inquiry. This special tribunal convened from February 23 to March 31, 1875, setting the stage for one of the most controversial legal battles in colonial history.


The Trial of the Century

To fight the charges, Malharrao hired the elite English lawyer Serjeant Ballantine. Ballantine’s defense was a masterclass in dismantling a prosecution’s narrative.  He mocked the "mythical" poison, arguing that a true assassin would use a proven toxin rather than biologically harmless diamond dust.  He exposed how the confessions of the servants and the secretary, Damodar Pant, were likely manufactured through British threats and solitary confinement. Most daringly, Ballantine suggested that Colonel Phayre staged the poisoning himself. Facing a humiliating transfer, Phayre allegedly framed the Maharaja to play the victim and save his reputation.



A House Divided: The Verdict

The Commission of Inquiry was the first of its kind, and its outcome exposed the deep rift between the Crown and its subjects. The six-member panel reached a split verdict.  Three British officers found Malharrao guilty.  Three Indian dignitaries (including the Maharajas of Gwalior and Jaipur) acquitted him, citing a complete lack of direct evidence.


The Precedent of Paramountcy

With a deadlocked jury and no murder conviction, the British government—led by Lord Salisbury—changed tactics. They couldn't prove he was a killer, so they branded him a failure.


On April 10, 1875, the Viceroy issued a proclamation. Bypassing the poisoning charges entirely, he deposed Malharrao and exiled him to Madras for "notorious misconduct" and "gross mismanagement."  This move changed Indian history forever. It established that a Prince’s sovereignty was not a birthright, but a "lease" from the British Crown—one that could be revoked at any moment for "incompetence."


The Four Suspects

While the British officially blamed the Maharaja, the "Baroda Poisoning Case" remains a classic historical whodunit. Each player had a motive, and the evidence points in multiple directions.


1. The Maharaja: Malharrao Gaekwad

  • Past Behavior: He had already spent eight years in prison for trying to poison his brother.

  • The Motive: He loathed Phayre’s interference. Even if he knew Phayre was being transferred, he may have wanted a final, vengeful strike.

  • The Witnesses: Both his private secretary, Damodar Pant, and the guard, Rowji, directly implicated him.


2. The Queen: Jamnabai

  • The "Spoils" of Crime: Following the trial, Jamnabai became the most powerful woman in Baroda. She hand-picked the next Maharaja and lived in honor for decades.

  • Access: As the late King’s widow, she had the connections to palace kitchens and the wealth (diamonds) required for the "grit."

  • Protection: Malharrao was a threat to her and her daughter; removing him secured their future.


3. The Resident: Colonel Robert Phayre

  • The "Staged" Theory: Phayre was facing a career-ending, forced transfer. Becoming a "murder target" transformed him from a failed bureaucrat into a tragic hero.

  • The "Grit" Clue: Arsenic is invisible. Diamond dust, however, is impossible to dissolve and acts as a visual "alarm." If Phayre wanted to ensure he didn't actually die but did get to claim he was poisoned, adding diamond dust was the perfect strategy.

  • The Reaction: He diagnosed "poisoning" after a single sip, a remarkably fast conclusion for someone drinking bitter grapefruit juice.


4. The Lawyer: Bhau Poonekar in Combination with Phayre

  • The Strategic Loop: Poonekar was Phayre’s shadow. If Phayre was replaced by a Maharaja-friendly Resident, Poonekar’s influence would vanish instantly.

  • The Manipulator: He had cultivated Rowji (the guard) and knew exactly which palace officials, like Damodar Pant, could be broken under interrogation.

  • The Result: By "helping" Phayre find the conspirators, Poonekar ensured the Maharaja’s downfall, protecting his clients’ interests and his own power.


So, who do you think did it? Was Malharrao a cold-blooded assassin, or was he the victim of the perfect colonial frame-up?


The Final Chapter: A Legacy Transformed

The dust of the trial settled into a bittersweet resolution for all involved. While the British successfully asserted their dominance, the players in the drama faced unexpected fates.


Colonel Phayre may have survived the poisoning, but he did not survive the scrutiny of his superiors. The Viceroy realized Phayre’s personal vendetta had clouded his judgment, making him an unreliable diplomat. Even before the trial ended, the British removed him from his post, viewing him as a liability rather than a hero.


Malharrao’s journey ended in a quiet, forced retirement. Exiled to Madras, he lived under British surveillance far from the luxury of Baroda. He died seven years later, a king in name only, remembered more for the "gritty" sherbet than for his rule. This incident came known as the Baroda Crisis (1874–1875).



The Intervention of Fate

The Baroda dynasty was at a crossroads. Malharrao’s predecessor, Khanderao II, had also been fiscally reckless; he famously commissioned the Pearl Carpet of Baroda—an opulent gift for Medina designed solely to bolster his global prestige. Had Khanderao left a direct male heir, the state likely would have continued its downward spiral of extravagance and mismanagement.

Instead, the scandal allowed the British and Queen Jamnabai to hit the reset button. They bypassed the immediate bloodline to select a young boy from a distant branch of the family: Sayajirao III.


The chaotic "tyranny" of Malharrao paved the way for one of India’s most visionary rulers. Under Sayajirao III, Baroda was transformed from a site of scandal into a model of progress, education, and modern governance. In a strange twist of history, the "bad king" and the poisoned sherbet were the catalysts Baroda needed to find its greatest leader.


Importance to Blog

This is the ruler and the conditions that our ancestors lived under during this time.


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