You can check websites of various state governments for holidays list. see dept of personnel & training for central govt holiday list. high courts also publish holidays list on their websites.
I have been referring to holiday list published by central government / high courts...PFA.
Some of them are yet to be released...
However there are cases where the list is in Hindi/ region languages ( Madhya Pradesh, Rajasthan, Gujarat...etc).
Date Week Day Holiday
January - 14 Tuesday Id-E-Milad
January - 26 Sunday Republic Day
February - 27 Thursday Maha Shivratri
March - 17 Monday Holi
April - 13 Sunday Mahavir Jayanthi
April - 18 Friday Good Friday
May - 01 Thursday May Day
May - 14 Wednesday Buddha Purnima
July - 29 Tuesday Id-Ul-Fitr
August - 15 Friday Independence Day
August - 18 Monday Krishna Janmastami
August - 29 Friday Ganesh Chaturthi
October - 02 Thursday Mahatma Gandhi Jayanthi
October - 03 Friday Vijaya Dashami
October - 06 Monday Bakri Id
October - 23 Thursday Diwali
November - 04 Tuesday Muharram
November - 06 Thursday Guru Nanak Jayanthi
December - 25 Thursday Christmas
Why Vote? User validation is extremely important for good content to prosper.