"I don't have time. My sense is that in many of these things, once you start engaging, you have to be consistent.. I certainly can't because I don't have the ability to think quickly and respond in you know 20-30 seconds in 140 characters," he said in a lighter note.
Mr Rajan said this when asked about his absence in the social media during an interaction with reporters.
The former RBI governor was in Kochi to address the Global Digital Summit (#Future), organised by the Kerala government.