• Alipore Telephone Exchange
• Behala Telephone Exchange
• Kalighat Telephone Exchange
• Calcutta Telegraph Office
• Shibpur Telephone Exchange
• DumDum Telephone Exchange
• Malda Telephone Exchange

• Jamshedpur Telephone Exchange
• Aurangabad Telephone Exchange
• Giridhi Telephone Exchange
• Lohardaga Telephone Exchange
• Bhagalpur Telephone Exchange
• Ranchi Telephone Exchange

• Panbazar Telephone Exchange
• Digboi Telephone Exchange
• Jorhat Telephone Exchange
• Pasighat Telephone Exchange
• Duliajan Telephone Exchange
• Goalpara Telephone Exchange
• Gulaghat Telephone Exchange
• Jowai Telephone Exchange
• Nowgoan Telephone Exchange
• Silchar Telephone Exchange
• North Lakhimpur Telephone Exchange
• Dimapur Telephone Exchange
• Champai Telephone Exchange

• Balasore Telephone Exchange
• Baripada Telephone Exchange
• Bhadrak Telephone Exchange
• Cuttack Telephone Exchange
• Jajpur Road Telephone Exchange
• Bhubaneswar Telephone Exchange
• Berhampur Telephone Exchange
• Raigada Telephone Exchange
• Sambalpur Telephone Exchange
• Sundarghar Telephone Exchange
• Jaipore Telephone Exchange

PWD (W.B.) :-

• West Bengal Film Development Corporation Ltd.

A.C. Market : -

• Happy Home & Hotel Pvt. Ltd.

Theaters / Auditorium :-

• Rabindra Sadan
• Chaplin Cinema Hall
• Ahindra Mancha

Hotel :-

• Great Easter Hotel

Office :-

• Vesuvius India Ltd.
• Balmer Lawrie & Co. Ltd.

Bank : -

• State Bank Of India (Main)
• Allahabad Bank (Main)

Other Industries : -

• Duncun Brothers
• Tamra Lipta Coperative Spinning Mill
• Everett India (P) Ltd.

Other Industries : -

• The Statesman Ltd.
• Vultas Ltd.
• Kirloskar Pneumetic Co. Ltd.