Read the terms and conditions of the scheme, and note what the exit option is. If there is one without any penalty or deductions, and you do not see any hassles, take back your money.
If you are not facilitated by the company and you do not see any recourse/remedy:
-Obtain the copies of the circulars of RBI, SEBI and check with them if these have not been withdrawn.
You can either visit them or speak to them at their nearest office.
-Once you have confirmed, you can issue a notice to the company for illegal/unfair practices, since they are not authorized by the regulators, and ask for refund of money + interest.
-If this does not fetch you any result, you have the option of lodging a complaint with consumer forum, or courts of law.
It shall be appropriate to show all documents to a competent lawyer/law firm before you proceed to take any action.