State Archaeological Museum in Kolkata has a rich collections including rare tools of the Early, Middle and the Late Stone Ages from Susunia (Bankura).
It also has proto-historic antiquities from Pandu Rajar Dhibi (Burdwan), terracottas, sculptures, stone and stucco from the Gupta, Maurya, Shunga, Kushana, Pala and Mediaeval times.
The entry ticket for adult is INR 5/- and there are official guides as well.