No home is typically sold in complete like that. However if an interested party came in and saw that there was no kitchen and no bath installed at the time, he or she might want to put their own mark on it by finishing it themselves. It couldn't hurt to ask the seller if it would be possible to purchase it as is; it might be a good negotiating tool for your offer.
Not a good idea to put work in yourself, for an HDFC apartment. Let them finish the apartment.