Awasthi, who currently heads equities at Nomura's India, will take over charge in his new role from April 1.
As 'head of India', Awasthi would be responsible for running Nomura's India franchise spanning fixed income, equities and investment banking.
The move comes following the elevation of Vikas Sharma, the current head of India, as the head of Asia ex-Japan at Nomura. Sharma will also take charge from April 1.
"Awasthi's appointment is recognition of his outstanding achievements as head of equities, India, and the excellent relationships he has built with key institutional clients," Sharma said.
Besides, he has had stints at JP Morgan, Morgan Stanley and Crisil where he began his career in 1994.