President Ram Nath Kovind wrote honored the late Union Minister by calling him "the voice of the oppressed, and championed the cause of the marginalized".
"He never failed to speak up for the deprived. His perspectives in policy-making were invaluable," wrote Finance Minister Nirmala Sitharaman.
Leader of opposition in Bihar, RJD's Tejashwi Yadav said "Lalu ji was always concerned about his health. Today Ram Vilas Paswan ji has passed away when Chirag Paswan needed him the most. Our deep condolences to his family, we are standing with them. I started my political career with Paswan ji, did many election campaigns as RJD & LJP were in an alliance in 2010".
Former Bihar CM and RJD leader Rabri Devi condoled the LJP founder's demise by saying, "May God provide peace to him and strength to his family. This is a loss for the entire politics in Bihar, people are sad. The entire RJD is sad that such a tall leader has left us. Our entire family is gloomy".
Watch their reactions here:
Delhi CM Arvind Kejriwal also sent his condolences on Twitter.
Former Congress President Rahul Gandhi wrote, "The news of the untimely demise of Ram Vilas Paswan ji is sad. The poor-downtrodden lost a strong political voice today. My condolences to his family".
As per reports, Ram Vilas Paswan passed away at a hospital in New Delhi this evening. He had undergone heart surgery on Saturday. The news of his passing away was shared by his son Chirag Paswan.