The Defence industry of India is a strategically important sector in India. With a strength of over 1.39 million active personnel, it is the world’s 2nd largest military force and has the world’s largest volunteer army. The total budget sanctioned for the Indian military for the financial year 2019 is $60.9 billion, about five times what it spends on education and welfare. Despite having a modest internal defence industry, India is the largest arms importer in the world, with most of its arms purchases coming in from Russia. 12% of worldwide arms exports (by value) reach India.  

Service/ department-wise allocation as a percentage of total defence estimates in 2017-18: 

• Army: 55.9% 
• Airforce: 22.5% 
• Navy: 14.6% 
• Directorate General of Ordnance Factories: 0.8% 
• Director General of Quality Assurance: 0.5% 
• R&D: 5.7% 

Source: https://en.wikipedia.org/wiki/Defence_industry_of_India