Team India's backroom staff will just have one change with Vikram Rathour replacing Sanjay Bangar as the batting coach.
Prime Minister Imran Khan has been invited to the wedding dinner.
India are in a commanding position in the Test match with a strong lead of 260 runs.
Citing the example of Shreyas Iyer, Ganguly said the captain needs to give freedom to the players.
Shastri's new contract, meanwhile, will end after the T20 World Cup in 2021.
He also gave his opinion on the BCCI coming under NADA ambit
Among other support staff, former opener Vikram Rathour will replace Sanjay Bangar as the batting coach.
Mark Ramprakash was the only overseas candidate who made it to the final shortlist of the selectors.
Richards also spoke highly about the Indian captain Virat Kohli.
Pant had a mediocre ODI series in the West Indies.