Change of Status
The term Change of Status (COS) is the name given to the process through which a person can change from one temporary status (nonimmigrant) to another temporary status without having to leave the United States. Typical examples of this process are changing from a student visa status to H-1B. Usually, a successful COS is evidenced by the USCIS issuing you a new I-94.
Changing status from a temporary visa to a green card within the United States is also a change of status, but it is technically referred to as Adjustment of Status (AOS).
GC approved while in India. The question is how to get back especially since not doing old job (Job where GC was filed). Mr. Khanna was very helpful and told me how to proceed. I will update this post once I am in USA