Dr Kafeel Khan, out on bail in a case of baby deaths at a Gorakhpur hospital last year, was arrested with his elder brother Adil Khan on forgery charges on Sunday evening.

Earlier, Kafeel and half-a-dozen friends had on Saturday evening been detained by Bahraich police for allegedly creating a ruckus in the district hospital but eventually released at night.

The suspended government paediatrician has been a fierce critic of chief minister Yogi Adityanath, whom he accuses of verbally targeting him at the Gorakhpur hospital after the baby deaths in August last year and eventually making a scapegoat of him.

The Gorakhpur police said a city resident, Muzaffar Alam, had lodged a complaint on July 2 alleging a local youth, Mohammad Faizan, superimposed his photograph on Alam’s driving licence and used it to open an account with Union Bank in 2009.

Senior superintendent of police Shalabh Mathur said some Rs 2 crore was deposited with the account and withdrawn from it between 2009 and 2014, the year the account was closed on a complaint from Alam.

He said a probe had revealed that Kafeel and Adil were involved and some of the money had been drawn in the doctor’s name.

It’s unclear why Alam — who the police said once worked at a private hospital run by Adil but was now jobless — had complained now. The police said they were looking for Faizan.

Kafeel and Adil were arrested from their homes in Gorakhpur shortly after Adityanath left the city, having spent the night there. A court has sent them to jail custody on forgery and fraud charges.

Officers and doctors in Bahraich said Kafeel had barged into the district hospital, located 200km west of Gorakhpur, with his friends, blamed negligence for the death of 128 children there since July 1, and tried to incite the patients’ families to violence.