I explored Pondicherry on October 5 2018 with my online friends(My Facebook Friend). I can't say you all as it was a sudden and unplanned trip.But somehow i can help you with the basics. #If you are travelling through train, Mission street is your first choice to rent a bike. It costs 250-300/Day. It's a walkable distance. Local autos will charge a bomb.
#After renting a bike, Head on to Rock beach road to get a Stay with a view. As your bugdet is 20k its fair. Must visit places :
1) Evenings and Nights at Rock beach.Don't miss to roam on the rock beach during Evening and night as well.
3)Chunnambar Boat House aka Paradise beach(Water Sports).Paradise beach is some what 5-10km away from rock beach and it's a paid entry one. You will be taken to the beach in a boat. Actually i missed it due to bad weather conditions then.
5) Serenity Beach(If you had time).t's similar to goa, Down the rock beach you can be able to find number of beaches and there will be nothing special with them. one of them is serenity beach.
6) Pondicherry Light House and Botanical Gardens. I personlaly thought to live in a peaceful village and so i booked an independent house in lawspet through Oyo which is 6-8Kms from Rock beach and all. There are the places which i personally visited in 2018. However there are good number of churches and all which doesn't create any interest for me to write down them here. Alcohol is not that cheap. It is just a bit low than normal prices.
You can explore pondy in 3days max. Spend your evenings at the rock beach.Visit auroville village.Of you wish to take up watersports, try surfing at kallialay surf school in serinity beach.And dont miss sciba diving with temple adventure.They have got a beautiful artificial reef with lot of beautiful fishes.