Special Roof Treatment With App On The Roof Of Block No. N Of Shantineer Phe Quarters Situated At 252 Gopal Lal Thakur Road, Kolkata- 700036, During The Year 2025-2026. Wbkp/cp/nit-340/ Special Roof Treatment With App On The Roof Of Block No. N Of Shantineer Phe Quarters Situated At 252 Gopal Lal Thakur Road /ten, Dated.06.08.2025