Grewal, who hails from Patiala, beat 31 other contestants to win the title Monday evening. Besides the crown, she even walked off with a cash prize of Rs.51,000.
"Everyone in my family was very supportive. My daughter, who is just nine and a half years old, was thrilled. She loves to dress up and when she saw me participating in the pageant, she was very happy for me," the 36-year-old, who also has a son, told IANS.
Being an army officer's wife, she frequently travels and wants to work as an event manager or anchor.
The second spot went to Shivangi Maletia from the capital. Delhi's Mrs. Rashmi Amitabh Shah bagged the third position.
They both received gift hampers and coupons for travel to Jammu and Kashmir.
Organised by Shri Sai Entertainments, the pageant was judged by celebrities like Sayali Bhagat, Vanya Mishra and Atul Wassan.