Sterling resort maintenance charges

They cannot compel you to pay maintenance for an "unaccepted" but allotted resort.

Contact, consult and engage a local prudent lawyer to file a suit for mandatory and permanent injuction with mesne profits and damages with an application for grant of "stay" on such demand to pay maintenance for a different resort which is not acceptable to you.

or 

A Consumer Complaint may be considered to be filed before jurisdicational Consumer Disputes Redressal Commission for deficiency of service. However, consumer commission cannot grant a "stay order" during pendency of the complaint and refund of amount paid with compensation.

There is no reason to accept a different project or resort other than what you had opted for.

It is an unfair trade practice besides breach of contract.

You can drag them to civil court for remedy i.e., for refund of your booking amount with interest till date.

But please remember that the demand you may make will be barred by limitaiton.

However you may refuse to pay the maintenance charges stating that you never accepted hence you are not bound to pay any maintenance charges.

You can challenge their legal action if any properly in the court of law if they choose to approach  a court with a lawsuit against you.

Thank you very much for your guidance. Sorry for the delay.