Also, MMS did NOT do something out of ordinary. The liberalization he chose already worked in Europe, China and elsewhere.
EVEN MMS was NOT the first choice as FM by PV Narshima Rao.
When celebrated economist IG Patel declined to become FM of India, MMS was approached.
Neither MMS did leave any original mark in the field of economy. There are tons of Indian economists who are known for their contribution like Meghnad Desai, Bhgwati, Sen, Kaushik Basu etc.