Firstly, you need to issue legal notice to  him asking him to repay the entire amount along with interest along with the reasons for cancellation of the deal.

If he fails to do so you can file a suit for recovery against him in civil court.

Also state as to when was this amount given?

Issue legal notice to seller to refund your advance payment of Rs 50000 as title is not clear and marketable 

2) if he refuses file police complaint against him for cheating , criminal breach of trust 

Yes you can claim the token money since the deal was cancelled due to defects in title, the fault being attributable to the other party not you.

Issue notice this regard to the seller.

In default file summary suit for recovery of the money.

You can also file a police complaint of cheating if the defects in title was known to the seller at the time of accepting the token money from you.

1. You can file a Police FIR, requesting investigation and charge-sheet, for offences like cheating, intimidation, fraud, breach of trust etc.... against the person, supported with all relevant supporting documents.

2. IF the Police does not take action, THEN you can file private criminal case u/s 156(3) Cr.P.C., in the local Magistrates court, seeking directions to the Police to investigate and file charge sheet. The said Person may come down for settlement.

Send a legal notice to the company and if they do not refund thereafter then file a case against them before the distrixt consumer forum.

regards

You can seek refund on that process.  If he is not giving you can also send him notice under bankruptcy code being a private ltd company and file case in NCLT

You need to send a legal notice to company for recovery of amount , if on notice the person fails you have to file a suit to recover the amount in same cause court.

File police complaint u/s 420, 406 IPC agasint the director and company. If police refused, approach commissioner.

you need to give legal notice for recovery of your money. If he don't respond to the notice then you can file recovery of money suit. 

You can issue a legal notice demanding the amount paid by you as token amount towards, since there was no agreement or conditions governing this situation the seller cannot deny to return the amount.

You may contact a lawyer and issue a legal notice as suggested.

Send him Legal Notice under Insolvency & Bankruptcy Code, he will return ur money with folded hands

Now the legal remedy available to you is serve his company a legal notice for refund of the money paid.

If he fails to refund the money initiate a recovery suit Under order XXXVII(summary trail)  of CPC 

1. As per the information mentioned in the present query, makes it clear that you have the token money, but no agreement was entered between the parties.
2. In the absence of the agreement, the other party cannot take the plea of not returning the token money as per any clause in the agreement.
3. In fact, if there would have been any agreement then also they could not take the same plea as there has been default in the property but not in your intention to buy.
4. You should file a suit for recovery of money with interest before the civil court of law by making company as party through its director.