The deceased was identified as Abhishek, a native of Bihar's Bhagalpur district who was living in a paying guest (PG) accommodation near Tirupati Hotel in Kota's Vigyan Nagar, police said.
The prisoner was identified as Anil, a resident of Chhatripura, Mhow Naka, Indore and he was imprisoned on the charges of murder of his wife in July last year.
A 20-year-old woman, who was pursuing her graduation from Delhi University and whose mother works in the Intelligence Bureau, allegedly died by suicide in her room, according to the police.