Directorate
of Industries (C&SSI) Govt. of West Bengal (Ref. No.: SSI/243/332/CAL1/67)
Ministry of Industrial Development and affairs, small industries service
unit Govt. of India (Ref. No.: ER/CER/(151)/68
Govt. purchase division (D.G.S.&D.) under N.S.I.C. (Ref. No.:
NSIC/GP/RS/WB/(A-97)/81
Directorate General of Supplies & Disposal, New Delhi (Ref. No.:
1/45793A/SSI)
Trade & Merchandise Marks (Act 1958), Govt. of India (Ref. No.:
569144 Dated 10/03/1992) 1st day of July 2002.