Police registered an FIR against Shiv Sena MP Hemant Patil on Wednesday, a day after he made the acting dean of a government hospital in Nanded, where 31 patients died in 48 hours, clean a dirty toilet and urinals, according to police.

The case was registered following a complaint by the acting dean, S R Wakode, on charges of obstructing the public servant from doing his duty and defaming him.