Explanation:

NITI Ayog (National Institution for Transforming India Aayog) is the brainchild of Modi, this institution has replaced the erstwhile Planning Commision.

Prime Minister heads this institution and its governing council members are the State CM's and Lt.Governors

The NITI Aayog comprises the following:

Prime Minister of India as the Chairperson
Governing Council comprising the Chief Ministers of all the States and Union territories with Legislatures and lieutenant governors of other Union Territories.
Regional Councils will be formed to address specific is sues and contingencies impacting more than one state or a region. These will be formed for a specified tenure. The Regional CouncilVUO by the Prime Minister and will be composed of the Chief Ministers of States and Lt. Governors of Union Territories in the region. These will be chaired by the Chairperson of the NITI Aayog or his nominee
Experts, specialists and practitioners with relevant domain knowledge as special invitees nominated by the Prime Minister
Full-time organizational framework (in addition to Prime Minister as the Chairperson) comprisin