14 November 1955 was the date of Diwali according to Deepavali.net
Diwali falls on the new moon night (Amavasya) between mid-October and mid-November. Diwali is celebrated for five days according to the lunisolar. It begins in late Ashvin (between September and October) and ends in early Kartika (between October and November).
Even I was searching the same question since long and I got two events which suggest as the day when Diwali was celebrated in the year 1952. * Films Baiju Bawra that hit the box office during the Diwali week in year 1952(10 October) (it suggests that Diwali was after 10 October 1952) * in moon phase calculator, you will find 18/19 as new moon, which mean Diwali would be on 18th October's night. I am not confirmed but I have two supporting clues which help to find the solution of youir query.
According to Deepavali.net, Diwali was on 24 October 1965.
Diwali was on Thursday, 9th November 1950.
According to Deepavali.net, Diwali was on: 14th November 1955.
According to Deepavali.net, Diwali was on: 6 November
According to Deepavali.net, Diwali was on 31 October.
14th Nov
Diwali was on 14 November 1061.
According to Deepavali.net, Diwali in the year 1990 was on 18th October.
Diwali was on Tuesday, 28th October 2008.
According to Deepavali.net, Diwali was on: 10 November
According to Deepavali.net, Diwali was on: 28 October
According to Deepavali.net, Diwali was on: 24 October
Diwali was on 17th of October 2009.
According to Deepavali.net, Diwali was on 18th October 1933.
According to Deepavali.net, Diwali was on 17 October 1963.
According to Deepavali.net, Diwali was on: 10 November 1958
According to Deepavali.net, Diwali was on: 2 October
Diwali was on 7th August 1935.