Stone Technology Private Limited is a WEST BENGAL based private ltd. Company Registered at dated 19 OCT 2011 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Stone Technology Private Limited is U31104WB2011PTC168722 and registration number is 168722 and AMITAVA MONDAL is director in STONE TECHNOLOGY PRIVATE LIMITED

Skylark Rubber Products Limited is a WEST BENGAL based public ltd. Company Registered at dated 28 JAN 1997 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Skylark Rubber Products Limited is U25190WB1997PLC132965 and registration number is 132965 and AMITAVA MONDAL is director in SKYLARK RUBBER PRODUCTS LIMITED

Green Sanitation Foundation is a WEST BENGAL based private ltd. Company Registered at dated 07 SEP 2011 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Green Sanitation Foundation is U90000WB2011NPL167279 and registration number is 167279 and AMITAVA MONDAL is director in GREEN SANITATION FOUNDATION