Speak to ur inlaws and see if you can settle for MCD,at the same time record all calls/conversations and try best to gather evidence to protect urself (in case they make any false allegations of dowry in future). In doing so keep ur EGO aside. Musibat ke samay gadhe ko papa banana pade to bhi theek hai.
At first send some relative/friend from ur side to their place and diffuse the heat. Let that person touch upon MCD and at same time record any fake allegations/threats they give. That person should be a clever/neutral person and ego proof :)
During this period contact local lawyer and get AB, as advised by other experts
Ur a husband , even if you are right u will have to tread cautiously and gather evidences to defend urself. If you have taken dowry then u need to WORRY. If not then fight the case on Merits. Agar darr gaye to tumhe aur daraya jayega, remember this !
(Read simliar cases on this forum and u will get answers to all ur worries)