Ministry of Defence, Govt.of India

Bharat Sanchar Nigam Limited

Directorate General of Supplies, Govt.of India

State Trading Corporation of Sikkim

Rural Development Department, Sikkim

Municipal Council, Port Blair

Horizon Hi-tech Engicon Ltd.

Techno power Enterprises, Dimapur, Nagaland

National Power Systems, Nagaland

M/s Sunil Kumar Agarwal, Sikkim

HFCL Infotel Ltd., Mohali, Chandigarh

Premier Irrigation & Equipments Ltd.

Calcutta Mumbai Truck Terminal Ltd.

High Tech Engineering Systems, Kolkata

Nezone Power Systems