Explanation:

Let’s break it down:

- Option 1: Aswathy Tonge — She's not known for being the DGP of Puducherry. No big headlines or records here.

- Option 2: Kanchan Choudhary — She made history as one of India’s first top-ranking women cops, but in Uttarakhand, not Puducherry.

- Option 3: Kiran Bedi — Super famous, India's first woman IPS officer, and also served as Puducherry’s Lieutenant Governor, but never as its police chief.

- Option 4: Sundari Nanda — She is the right pick. Sundari Nanda became the first woman to hold the Director General of Police post in Puducherry. That was a landmark for the region.