Otto Projects Private Limited
4, Bishop Lefroy Road, Calcutta Mansion (1st Floor)
Kolkata- 700020, West Bengal (India)
Bengal Gas Engineering&Service
Post Office Samta, Police Station, Bagnan
Howrah- 711324, West Bengal (India)
International Industrial Gases Limited
No. 146, Andul Road
Howrah- 711103, West Bengal (India)
East Coast Engineering Private Limited
Karangapara Rd, Durgapur - 713201
Durgapur- 713201, West Bengal (India)
PCM Group Of Industries
Park Street, 10-C, Middle Ton Raw
Kolkata- 700071, West Bengal (India)