Thiruvananthapuram: C K Chandrappan, veteran CPI leader and party's Kerala state secretary and former Lok Sabha member, died in a hospital here on Thursday.

Chandrappan (77) had been keeping indifferent health for some time and undergoing treatment here for the last few days, party sources said.

He is survived by wife.

Chandrappan was also elected to the Kerala Assembly once from his hometown Cherthala in Alappuzha district.