Regarding C cess

sweta koshti (24 Points)

19 April 2021  
One of client has purchased car worth Rs. 867000. In invoice along with CGST AND SGST, they have also charged C CESS @ 17%.

On GST PORTAL, Company has given credit of cgst, sgst and also c cess.

so what is c cess? Nd can I claim refund for it?

what is the entry for c cess in tally ?