I suggest you itinerary for you
Day 1 : Are pondicherry morning and relax for while and later Paradise beach and later evening go to Gandhi beach.
Day 2 : Pondicherry city french colony and Aero vile beach( play in the beach) and enjoy food and booze in Pondicherry.
Day 3 : Morning see Auroville and enjoy time in beaches and later travel in the evening to your destination.
Food
beaches
booze
French colony
Gandhi beach In the evening and lot's of things
take room near Auroville it's best place to stay in Pondicherry.
please check before traveling any test or e pass or regarding covid 19.
or if you want you can travel to Mahabalipuram it's 100 kms from pondicherry ( Day excursion it's beach and monuments)
Well TBH, may will be way hot for Pondicherry to travel. But if you have already made your mind to travel in hot summer to pondicherry. Then please make it a 3 day trip as we don't go oftenly to these places.
In Pondicherry you have many things to cover!
They have some beautiful architect cafes, sir aurbindo ashram, wander white town, there local food and specially tea of pondicherry. Local market, beaches. Then Auroville. So plan accordingly