The body was taken to the Lodhi Road electric crematorium from 13, Talkatora Road, the residence of Abhijeet Mukherjee, the President's son, where it was kept to enable people to pay their last respect.
Suvra, 74, breathed her last at Army Research and Referral Hospital in Delhi on Tuesday.
The ashes will be taken by the family to Haridwar this afternoon.
Among those present at the cremation ground were Vice President Hamid Ansari, Prime Minister Narendra Modi, his Bangladesh counterpart Sheikh Hasina, former Prime Minister Manmohan Singh, Home Minister Rajnath Singh, several other Union ministers, Congress President Sonia Gandhi, West Bengal Chief Minister Mamata Banerjee, her Delhi counterpart Arvind Kejriwal and BJP leader L K Advani.
Suvra was admitted to the hospital on August 7 after she complained of breathlessness and discomfort. Since then she was in the Intensive Care Unit.
Besides her husband, Suvra leaves behind two sons Abhijit, a Congress MP, and Indrajit and daughter Sharmistha.
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