Rao, who has been keeping away from all programmes and meetings organised by the Congress since 2014 parliamentary elections, told reporters here that he would abide by "the sentiments" of the people of his constituency Yanam, an enclave of Puducherry in Andhra Pradesh.
The announcement comes in the backdrop of his meeting with AIADMK Puducherry Unit Secretary P Purushothaman yesterday, triggering speculations in the political circles that he may align with the Dravidian major.
In January last, the Congress MLA openly came out in support of the AINRC and praised Chief Minister N. Rangasamy for all the assistance rendered to the constituency.
Rao, a former Minister of Puducherry, has retained the Yanam constituency since his first election to the Assembly in 1996.