According to TRS sources, Rao met Sonia Gandhi in the evening and thanked her for taking steps towards the creation of the new state.
Rao, is also understood to have requested the Congress president to ensure that Telangana Bill to be cleared in both houses of Parliament.
When asked about the speculation of merger of the two parties, a TRS leader replied in negative.
"I don't think so. Talks may happen only after the bill is passed," the leader said.