request builder to mark the parking slots allotted to you 

if buildet fails to do so then on formation of society it can mark the parking slots 

See if apartment association or society is formed ask for parking from the association if not ask for allotment from the builder.

If they fail to lalit same a consumer complaint feeling allotment and compensation can be filed.

See builder cannot sale a slit parking it is part of common area if you have proof of same serve builder legal notice seeking allotment and refund of your amount.

Was money paid by you by cheque’ or cash ? 

Any acknolwdgmemt received by you 

you can use  legal notice to builder to mark your car parking slot 

If your housing society is still being maintained by the builder, and not by the residents welfare assn, send a legal notice to the builder in the present matter, calling upon to immediate earmark and allot a parkkpa slot in your favor.

The Builder can neither sell nor allot open or stilt parking spaces.. 

Issue a legal  notice through an advocate to builder and file a complaint at district consumer forum under defeincy of service and claim refund along with interest and compensation. 

Move the consumer Court

You can send the legal notice in your matter through kaanoon.com as well. 

Actually it should be mentioned in Agreement or separate deed with builder. Send a legal notice to builder for the same. You can file compliant at Consumer court for the same

Approach consumer court.

1. Send a notice to the builder for the allotment 

Send a legal notice to the builder and if he does not respond then file a case before the consumer forum in order to get the refund for the amount that has been paid by you

If the association has not been formed yet, then you catch hold of the builder to allot and identify your parking space, if he is not doing so, you may issue a legal notice to him and after that drag  him to consumer forum for relief and remedy.

If association is formed then you may talk to the office bearers and get your parking space allotted as per the allotment letter

You can issue a legal notice to the builder demanding either the parking space or return of the amount collected from you for this purpose.

In fact he cannot charge you for the parking space, he can be dragged to court on this.

1. As per the information mentioned in the present query, makes it clear that you just have had entered into an agreement with the builder and there must be a clause of allotting a parking space for the sum of Rs. mentioned above.
2. As it has not been complied by the builder till now you should serve him a legal notice for the compliance of the agreement.
3. If no reply then I would advice you to please file a suit for enforcement of the agreement to hand over the parking space or give the money back with interest plus litigation charges as the builder is at fault not you.