The 78-year-old veteran collapsed during President Pranab Mukherjee's address to both the houses of Parliament in the central hall on Tuesday afternoon.
"Just heard about hospitalisation of E. Ahamed ji. I wish him a speedy recovery," Banerjee said in a tweet.
Ahamed has served as Minister of State for External Affairs in the UPA government and has been a Lok Sabha member from Malappuram in Kerala since 1991. Doctors at Ram Manohar Lohia Hospital in Delhi said his condition is critical.