The Chamkati Mosque is one of the earliest structures at Gaur, erected in 1478, as per its inscription preserved in the British Museum. It was built by Sultan Yusuf Shah, a sultan of Bengal.
It is also known as Chika Mosque because it used to give shelter to a lot of bats, which are known as Chika in Hindi.
It has beautiful terracotta decorations, seen in so many of the West Bengal temples.