Supply of Steel trunk size 4 x 3 x 2. 5 at Rangma Range in the state of Sikkim, Supply of Steel trunk size 4 x 3 x 2. 5 at Kalimpong in the state of West Bengal, Supply of Steel trunk size 4 x 3 x 2. 5 at Lachung in the state of Sikim, Supply of Steel trunk size 4 x 3 x 2. 5 at Thangu in the state of Sikim, Supply of Steel trunk size 4 x 3 x 2. 5 in the state of West Bengal