Tharoor was speaking to reporters after attending a meeting of Congress and National Students' Union of India (NSUI) leaders ahead of the upcoming Delhi University Students' elections (DUSU).
The Congress leader also took part in the campaigning ahead of the DUSU elections.
Clarifying his earlier statements on the issue of soft-Hindutva, Tharoor added, "I just want to say that Congress has its own ideology and agenda. We don't believe in caste, religion or regional politics. We believe in working for all.
Tharoor said that if Congress tried to copy BJP's stance, it would mean them leaving their core ideology.
"If we try to behave like the ruling party then why should the people vote for us. Let the ones who want to go to their side leave, they have temporary support today. We lost the elections and that is okay, but we should never leave our principles and ideology," he said.
Tharoor added "On the core principles of the party there should be no compromise. I came to Congress because it was the best vehicle for the advancement of the country. It stood for the India that Jawaharlal Nehru, Maulana Azad and Mahatma Gandhi fought for."
The MP also said that there was no major disagreement in the Congress and the debate surrounding his statements would move the party forward in a better direction.
"I think there is a healthy disagreement about the ideology but it is good because it will lead to the answers as to why and how people will vote for the Congress," Tharoor said.