"The UPA will form the government third time, under Rahul Gandhi, I believe..", Narayanasamy told reporters after offering prayers at the Sri Chakrapanisamy temple here.
Exit poll projections were proved wrong in 2004 and 2009, he said.
However, he added he was not an astrologer to predict the outcome of the elections.
"We will abide by the people's decision," he said.
The senior Congress leader also claimed that political leaders like Lalu Prasad Yadav, Mamata Banerjee and Jayalalithaa will not extend support to Narendra Modi to form the government.