Realtech Nirman Builds Quality Custom Apartments In Kolkata The principle behind the foundation of the architect firm, ‘Realtech Nirman Pvt. Ltd.’ was to change the buyers’ expectations from one of the top real estate builders in Kolkata. In most of the cases, when a buyer books an apartment, expectations would be restricted with getting the basic amenities. The buyer would then hire an interior decorator to complete the interiors of the home. What we do is that we complete every individual project with a personal approach. We prioritise 100% user satisfaction. We build both luxury and budget apartments. Whatever may be the type of the apartment, all of them could boast of impeccable designs. We never break our promise and go beyond the buyers’ expectations!