India's economy has developed very rapidly in recent years, and its domestic military industry is very weak, which also makes it impossible for India to independently produce too many advanced military weapons and equipment. However, India has a very close relationship with western countries, which also facilitates India to purchase advanced military weapons and equipment. The military cooperation between India and Russia has a long history, which also makes India equipped with a large number of Russian weapons and equipment. Russia exports a large number of military weapons and equipment to India every year and earns a lot of foreign exchange.
Since the disintegration of the Soviet Union, Russia's economy has been in a very difficult stage, but Russia has many weapons and equipment produced in the Soviet era. Therefore, in order to alleviate the domestic economic pressure, Russia will choose to sell these weapons and equipment to India. For example, India's aircraft carrier used to be Russian weapons and equipment, but Russia also made a lot of money from India through this aircraft carrier. Moreover, this aircraft carrier has poor combat effectiveness and often goes back to Russia for maintenance. Every time India spends sky-high maintenance fees, it can be seen that there is no real friendship between Russia and India.
Of course, the mutual utilization relationship between countries is very normal. There is no territorial dispute or other friction between Russia and India, and this mutual utilization relationship can be maintained for a long time.