Prateek Yadav died Wednesday, May 13, 2026 [2], after collapsing at his home in Lucknow, Uttar Pradesh [1].

As the younger son of the late former Uttar Pradesh chief minister Mulayam Singh Yadav and half-brother to Samajwadi Party chief Akhilesh Yadav, his death marks a significant loss for one of India's most prominent political families.

Yadav, 38 [1], reportedly collapsed at his residence around 4 p.m. [3]. He was taken to a Lucknow civil hospital, where he was declared dead [1, 4]. While some reports indicate he died following a prolonged illness [5], others focused on the sudden nature of the collapse [1].

Following the news, Samajwadi Party chief Akhilesh Yadav arrived at the hospital. "Extremely saddening," Akhilesh Yadav said regarding the death of his step-brother [6].

Speculation regarding the cause of death surfaced quickly on social media, including rumors that Yadav may have been poisoned. Hospital officials moved to dismiss these claims. "There is no evidence of poisoning," the chief medical officer of the civil hospital said [7].

Family members expressed their grief as news of the death spread through the capital of Uttar Pradesh. "We are in shock and grieving," Aparna Yadav, the wife of Prateek Yadav, said [8].

Medical officials have not yet released a final cause of death, as the formal post-mortem process continues to address the contradictions between reports of a sudden collapse and a prolonged illness [4, 5].

"Extremely saddening," said Akhilesh Yadav on step-brother's death

The death of Prateek Yadav occurs within the complex internal dynamics of the Yadav family, which has historically seen shifts in leadership and public alignment. While Prateek remained less prominent in the political foreground than his half-brother Akhilesh, the sudden nature of his death and the immediate emergence of poisoning rumors highlight the volatile public scrutiny surrounding the Samajwadi Party's inner circle.