Committing suicide is not the answer to any problem.
If dwarka police has not registered the FIR then you have the right of filing the criminal case directly in court whereupon court will initiate the process of law against your husband. It is not clear from your query as to which case your husband has fled against you at Dehradun. Contact a Dehradun based lawyer to get the details of the case. Your husband cannot get divorce at the drop of a hat. You will be issued a notice by court and given the opportunity of contesting the case filed by him. In addition to this you may sue him for maintenance.