Castro Engineering Pvt. Ltd.
W Road, Shanpur(Shibtala) , Dasnagar
Howrah- 711105, West Bengal (India)
SKM Geotech
No. 30- A, Canal East Road
Kolkata- 700011, West Bengal (India)
Geotech Instruments Inc.
No. 38, Bosepara, Post Office Chandannagar Hooghly
Chandannagar- 712136, West Bengal (India)