Jain had been working with the Bachchan family closely for over 36 years. He had also produced Bachchan and Govinda 1998 starrer 'Bade Miyan Chote Miyan'.
As per reports, Jain died in his sleep.
The last rites, which were performed at Pawan Hans Crematorium on Saturday evening, were attended by Bachchan, his son Abhishek and daughter-in-law Aishwarya Rai Bachchan.
Bachchan paid tributes to Jain on his blog and remembered him as "a simple man".
The actor, who helped carry the mortal remains of his close associate along with Abhishek Bachchan, said Jain was the picture of sincerity and honesty.
"He carried the burden of my work for almost 40 years... gentle, diligent, humble and the picture of sincerity and honesty... today I carried him to his last journey.
"Sheetal Jain my manager, secretary through thick and thin, passed away this morning after a short but severe battle in hospital... and flashes of his association through these 40 years, as a member of the family swept by," Bachchan wrote.
The "Badla" star said now there is a "vacuum" in his office and in their family.
Besides Bachchan, actor Anupam Kher and filmmaker Madhur Bhandarkar also remembered Jain.
"Saddened to know about the demise of producer Shri #SheetalJain ji. Knew him for a long time as Mr @SrBachchan's secretary. He was a very dignified and an extremely polite gentleman. May God give his family the strength to deal with this loss," Kher wrote on Twitter.
Saddened to know about the demise of producer Shri #SheetalJain ji. Knew him for a long time as Mr. @SrBachchan‘s s… https://t.co/mfrLLTyHUm— Anupam Kher (@AnupamPKher) 1559983678000
Bhandarkar tweeted, "Sad to know demise of Sheetal Jain ji. He was a very humble, soft spoken and gracious person. Film industry will miss him. My condolences to his family and friends. #OmShanti."
Sad to know demise of Sheetal Jain ji. He was a very humble, soft spoken and gracious person. Film industry will mi… https://t.co/tWlc3rPwYI— Madhur Bhandarkar (@imbhandarkar) 1559983164000
Emiliano Sala And Other Athletes Who Succumbed To Untimely Deaths During Their Journey
A Flight To The End
The 28-year-old Argentinian striker had become Cardiff City’s club-record signing when he put pen to paper on January 18. After finishing his medical at the Premier League club, he flew back to Nantes to bid goodbye to his former teammates. However, on January 21, the private jet on which he was returning to the United Kingdom went missing over the Channel Islands. Sala, who was one of the two people, along with pilot David Ibbotson, on the flight, left a WhatsApp voice message suggesting his plane “feels like it’s falling to pieces”. The wreckage of the aircraft and Sala’s body were located a few days ago.
(Text: Rohan Abraham)