H D Shourie, consumer activist and father of former Union minister Arun Shourie, died in New Delhi on Tuesday.
The 93-year-old retired Indian Civil Services officer and founder of Common Cause is survived by two sons and a daughter.
He will be cremated this evening in Lodhi crematorium.
Arun Shourie, former disinvestment and communication minister in the erstwhile Vajpayee government, said his father died in sleep this morning, a day after he fell sick.
The doctors said H D Shourie is believed to have died due to heart attack.
Arun Shourie had lost his mother last year.