Singh (74), the wife of former Kerala governor Nikhil Kumar, died during treatment at a Delhi hospital in the early hours. She was also the daughter-in-law of former Bihar chief minister Satyendra Narayan Sinha.
Singh entered Parliament in 1999 from the Aurangabad Lok Sabha seat of Bihar. She was also the vice president of Bihar Congress.
Her father was an ICS officer while her mother Madhuri Singh was a former MP.
"Singh served the people with immense dedication and her noteworthy contributions to the well-being of the people of Aurangabad shall be never be forgotten," Gandhi said in her message.
Congress Vice President Rahul Gandhi, who is away to the United States, also condoled her death.
"My condolences to the family of former Parliamentarian and senior Congress leader Smt Shyama Singh ji on her demise," he said on Twitter.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)