Hi Mayank, Pondicherry is highly known for one to two of its really good beaches to spend time at. One of them is Rock beach, also Promenade beach; just opposite to this stretch is a good restaurant overlooking the sea, called Ajanta Restaurant. They serve good food; veg/non-veg and alcohol for people who prefer. Half a day spending time at the beach and lunch here could be fulfilling. Pondicherry has a French Colony quarter. There are houses from the time and maintained pretty well with that architecture. These streets are a "must-walk and explore" ones! Walking around White Town, you will spot bright yellow and white walls, arched gates lined with bougainvillea, and clean European-style streets.
There are some very good and normal budgeted cafes to eat at here - Cafe Des Arts; a pizza famous place - Cafe Xtasi. There is also an amazing restaurant called Surguru which serves North/south indian, known mostly for its South Indian Food. This covers other half of your day. Being in Pondicherry, the second day could be rejoiced visiting the Aurobindo centres like, Aurobindo Ashram, Aurobindo Batik factory, Auro paper factory. Ashram also has a bookstore opposite with a collection of aurobindo's philosophies, biographies and etc. These stay open till 5 PM in the evening. There is another exciting beach called the Paradise beach which is away from the city center and its location can be reached by a rented two-wheeler or autorickshaw. It is an island like land surrounded by water and has a sand bed-shore. One has to take a ferry ride to this beach from the entry point of this place. This should be visited keeping half a day in hand, given its away and would be enjoyed with good time in hand. So maybe for you, it could be on the visit-list for the next time as well! Hope this helps! Enjoy your trip.
Day 1 -reach pondichery
-Fresh up at hotel and visit paradise beach .There are 1-2 restaurants at the beach..either u can have lunche there or come out and have lunch
-In the evng times , explore the rock beach and french colonies,ganapati temple,church (these are like 2-3 KMS walk)
-spent time on rock beach still mrng Day 2
-To experience the best sunrise go to serenity beach
-go back to hotel and fresh up
-head to auroville meditation center
-get back to city,go for shopping if time permits