Section-3 Chronology of the establishment set up

Section-3 Chronology of the establishment set up

First Branch Office of the Department was opened in Pune in 1925 and then Chief started discharging his duties with the help of one Inspector each at Calcutta and Pune.
By 1938, the Department had further extended to four Circle Offices at Lahore, Chennai, Calcutta and Mumbai, with Head Office at Calcutta.  Subsequently a Central Circle Office was opened at Nagpur, which was later shifted to Gwalior.
The Head office was also shifted time to time from Shimla to Calcutta, Calcutta to New Delhi and  after independence from New Delhi to Nagpur. The present Head office is at Nagpur.

• During partition of India and Pakistan, the office at Lahore was shifted to Agra. 
• One sub-circle office at Gomia was started in 1958, due to the start of the first high explosives manufacturing factory(ICI Ltd) in the country.
• Sub-circle offices at Asansol (West Bengal) and Sivakasi (Tamil Nadu) came into existence by that time.
• A new Sub-Circle office at Hyderabad was opened on 02.12.1968 and a Sub-Circle office Guwahati for the North-Eastern States was started in 1973.
• A Sub-Circle office at Hazaribagh and Pay & Accounts Office at Nagpur were opened in 1976.
• In 1979-80, a Sub-Circle office at Bhandara was opened due to Commissioning of Commercial High Explosives plant of the Ordinance Factory Bhandara, Maharashtra.
• The first re-organization of the department was completed in the two years 1980-81 and 1981-82 by opening of Sub-Circle offices at Rourkela, Manglore, Ernakulam, Baroda, Chandigarh, Bhopal and Jaipur.  The Central Circle office at Gwalior was abolished.
• The major re-organisation of the Department was sanctioned in 1995 by increasing the strength of Group-A Technical Officers from 67 to 151. New Circle office viz. North Circle office at Faridabad (near New Delhi) and Sub-Circle office at Allahabad and the Central Testing  Station at Gondkhairi, Nagpur  for better functioning of the Department.
• At present the Department, apart from the Head Office (and Central Testing Station) at Nagpur, has 5 Circle offices and 18 Sub-Circle/Factory attached offices.