The Indian Air Force has deployed its three S-400 air defense missile squadrons along borders with China and Pakistan. To further boost India's defence system, Indian and Russian officials are set to meet soon to finalise the delivery schedule for the remaining two squadrons.

• In 2018-19, India agreed with Russia to procure S-400 missiles worth Rs. 
• 35,000 crore (approx). As per the agreement five squadrons of S-400 missiles were set to be delivered by Russia to India.
• Out of five squadrons, three were delivered. Whereas the delivery of the remaining two was hindered due to the Russia-Ukraine conflict.