Karunanidhi began the day by paying homage at the memorials of his mentors, DMK founder C N Annadurai and Dravidar Kazhagam founder E V Ramasamy in Chennai.
Senior DMK leaders, party functionaries, religious leaders and people from different walks of life lined up at his residence to greet him on the occasion.
Later, at the party headquarters -- Anna Arivalayam -- hundreds of party cadre queued up to wish him.
Taking the e-route, the party has added another facility for sending birthday greetings through mobile phone or by accessing the portal -- www.kalaignarkarunanidhi.com.
A series of functions has been organised to mark the occasion, which include blood donation camp and a public meeting to be chaired by Karunanidhi later this evening, party sources said.
Image: DMK chief M Karunanidhi
When UPA almost announced free mobiles for poor...
Over 80 DMK workers hospitalised with food poisoning
Manmohan Singh is the BJP's biggest asset
'Jayalalithaa will not win a single Lok Sabha seat'