Eighteen months after he was arrested for the murders of his bedridden wife and mentally-challenged daughter, a 91-year-old man has been released on bail by the Bombay high court. Justice Makarand Karnik on Friday allowed the bail plea of Purushottam Singh Gandhok, a resident of Sher-e-Punjab in Andheri (East) who was arrested for killing his 81-year-old wife and 55-year-old daughter in February last year.