South Calcutta Trekkers Association was registered in 1984 and today it has become one of the most popular adventure groups of Kolkata. They conduct their rock climbing courses every winter which mainly take place at Susunia and Mathaburu Hills. They say that there are quite a few stages of mountaineering, but they concentrate on rock craft which includes free, long pitch, lead, aided and bouldering climbing. Their rock climbing courses cost around INR 2,200 which is inclusive of everything, even the equipment. You can check out their website to know about their other adventure sports activities.