State Bank of India, the nation's biggest bank is stepping on the gas on marketing to sell home loans and remain the top mortgage company. As a marketing thrust, SBI has also decided to offer upto 35 basis points concession on loans for construction to the builders for the affordable housing segment. "We are tying up with builders and offering them construction finance on easier terms for affordable housing projects. This, in turn, helps marketing of home loans," SBI chief general manager for Kolkata circle Partha Pratim Sengupta said at an event in Kolkata. One basis point is 0.01 percentage point. SBI announced lowering of home loan rates last week and accordingly women borrowers get home loan at 8.35% for up to Rs 30 lakh, while other salaried borrowers get loans at 8.40% a year. This was matched by its rivals ICICI Bank and HDFC as they are all trying to take advantage of the central government's push towards affordable housing.