Smart Online Solution Private Limited is a WEST BENGAL based private ltd. Company Registered at dated 19 AUG 2010 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Smart Online Solution Private Limited is U72900WB2010PTC152433 and registration number is 152433 and SUDIPTA KARMAKAR is director in SMART ONLINE SOLUTION PRIVATE LIMITED

Welkin Infra-Solution Limited is a WEST BENGAL based public ltd. Company Registered at dated 23 JUN 2011 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Welkin Infra-Solution Limited is U70109WB2011PLC164096 and registration number is 164096 and SUDIPTA KARMAKAR is director in WELKIN INFRA-SOLUTION LIMITED

Welkin Realcon Limited is a MADHYA PRADESH based public ltd. Company Registered at dated 26 AUG 2011 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Welkin Realcon Limited is U70100MP2011PLC026634 and registration number is 026634 and SUDIPTA KARMAKAR is director in WELKIN REALCON LIMITED