Dinakaran greets Rahul Gandhi on elevation as Congress President

"Congratulations to @OfficeOfRG on being elected as Congress President unopposed. Wish you a sterling tenure in the footsteps of the illustrious past presidents of the more than a century-old Congress party," he said in a tweet tagging Gandhi's official Twitter handle.

Earlier, Congress' central election authority head had said Gandhi was elected unopposed as Congress president.

Rahul Gandhi will collect the certificate formally declaring his ascension to the post on December 16, party's CEA head Muallapally Ramachandran had said.

The 47-year-old Gandhi succeeds his mother Sonia Gandhi, who remained in the post for 19 years.