Who is presently the chairman of NITI Aayog in India as of 2024?

Narendra Modi

The correct answer is Option 2 - Narendra Modi

The Government of India replaced the Planning Commission with a new institution named NITI Aayog.
NITI Aayog stands for National Institution for Transforming India.
The NITI Aayog came into existence on 1 January 2015.
The Prime Minister is its Chairperson.
Thus Shri. Narendra Modi is the present chairperson of NITI Aayog (2024).