Input credit claim on cst sales

If a product is sold under CST @ 2% and the for the same was made under VAT @ 14.5%, Can we claim the Input Credit against such CST sales?

Eg: If product A is sold for Rs. 1000/- then the tax liability under CST @ 2 % would be Rs. 20; if this product was purchased for Rs. 1000/- under VAT @ 14.5% then the VAT input credit would be Rs. 145/-

Can We claim a refund for Rs. 125 (Output: 20 less Input: 145)?

P.S: Assumed Purchase & Sales Rate as the same for easy understanding