Purchase with st & sales in cst???

vinayak c. chavan (CPT passed) (1011 Points)

10 December 2014  

We are pvt ltd co. We have made purchase with service tax including in it in mumbai. Now our customer from DAMAN wants invoice in CST as he will give us C form . Will it is ok to make invoice in CST for us? or I have to make invoice with ST only beacause we have purchased with ST?