No. In October 2018, India had signed a USD 5 billion deal to buy five units of the S-400 air defence missile systems from Russia. At that time, Trump administration had sent India a clear warning that it might draw major sanctions.
Sanctions were eventually not imposed on India due to a waiver clause, which took note of India's commitments diversify defence purchases over time.
India had also previously come under CAATSA cloud over buying oil from Iran.