You go and read history. USSR and China were friend until 1960, when Mao has closed down all Soviet consulates in China and expelled all Soviet citizens from China, after accusing Kruschev of organizing a coup against Mao. In 1962 on November 6, USSR criticised China for its invasion of India and started sending every type of weapons including MIG aircrafts to India. India was industrialized because of the USSR, who gave every industries and technology. USSR also discovered oil fields in India's west coast and in North Eastern states. It has defended India against a possible combined attacks from China, USA and Iran during the Indo-Pak war in 1971. After 1974 India has received every nuclear technology and missiles and rockets from USSR only. You must a really ungrateful monster like this studid uneducated Digbijay Singh.
