Tds credit in case of merger

Dear friends

Q. I want to know how can we take credit of TDS in case of merger?

Suppose A & B are going to merge each other and company C will be incorporate and one of the party deduct tds of company B of Rs 200000. but after merging the same how can we take credit of the same in case of merged entity i.e. Company C. beause in case of merged entity pan no is diff.

Pl provide some ref. also...

thanxx in advance.