Singh held huge political energy throughout the left-wing celebration till 2010, when he left the bloc to change into an unbiased politician.
He was subsequently elected as a member of parliament in India’s Rajya Sabha by voters in Uttar Pradesh.
Leaders throughout the Indian political spectrum paid tribute to him on Saturday.
“Amar Singh Ji was an lively public determine,” Modi wrote. “In the previous few a long time, he witnessed among the main political developments from shut quarters. He was recognized for his friendships throughout many spheres of life. Saddened by his demise.”
Indian President Ram Nath Kovind added: “Unhappy to listen to of the demise of senior chief and Rajya Sabha MP, Shri Amar Singh. A person of many elements, Singh was an in a position parliamentarian. Condolences to his household, associates and well-wishers.”
Opposition chief Rajya Sabha additionally despatched condolences, describing Singh as “a fighter all through his life.”
Singh had battled sick well being for a number of years however continued to ship messages on his Twitter web page, celebrating Eid and paying tribute to revolutionary fighter Bal Gangadhar Tilak hours earlier than his dying.