Sidhidhan Business Private Limited is a WEST BENGAL based private ltd. Company Registered at dated 04 APR 2012 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Sidhidhan Business Private Limited is U51909WB2012PTC179639 and registration number is 179639 and VANSHIKA GOENKA is director in SIDHIDHAN BUSINESS PRIVATE LIMITED

Grey Engineering Works Limited is a WEST BENGAL based public ltd. Company Registered at dated 28 JAN 2010 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Grey Engineering Works Limited is U31908WB2010PLC141480 and registration number is 141480 and VANSHIKA GOENKA is director in GREY ENGINEERING WORKS LIMITED

Pp Electro Filter Engineering Private Limited is a WEST BENGAL based private ltd. Company Registered at dated 29 JAN 2010 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Pp Electro Filter Engineering Private Limited is U74210WB2010PTC141486 and registration number is 141486 and VANSHIKA GOENKA is director in PP ELECTRO FILTER ENGINEERING PRIVATE LIMITED