Speaking to reporters at Parliament premises, Azad said Congress has information that former Union minister Ahamed had passed away "much earlier" than it was formally declared.
He also accused the government of keeping the body at the hospital for it wanted to go ahead with presenting Union Budget on February 1 despite opposition parties demanding its postponement.
"We will definitely want discussion on the way the body of Ahamed was kept there (at RML hospital). Our information is that his death happened much earlier (than it was declared).
The Azad's remarks came after Congress MP K C Venugopal today reportedly gave an adjournment motion notice in Lok Sabha, accusing the hospital and the Centre of unethical approach towards Ahamed and his kin.
Former Union minister and Indian Union Muslim League (IUML) MP E Ahamed passed away in the early hours of Wednesday. His funeral took place yesterday in his home state Kerala.