Answer : 4. "अलका नांगिया अरोड़ा"
Explanation :

Ms. Alka Nangia Arora, Joint Secretary, Ministry of MSME, takes charge as CMD of NSIC Ms. Alka Nangia Arora, IDAS (91) took over as the Chairperson-cum-Managing Director of National Small Industries Corporation Limited (NSIC) on September 14, 2021. Assumed additional charge of the post of CMD).