Hey Ravish, Pondicherry is one of the most sought destinations to visit in December and comparatively cost effective also ... Here s the itinerary which you can follow on your trip to Pondicherry:- Day 1 :- Visit serenity beach for sunrise ... Then go to Auroville and matrimandir and also Auroville beach .... Finish your Day by strolling on the promenade or Gandhi statue beach road which is only meant for walking after 5pm .... Day 2:- Today visit Arulmigu temple and then go to Paradise beach which is a must visit in pondi .... then in the evening visit Aurobindo ashram and roaming around french colony and white colony ... Day 3:- Visit basilica of scared heart of Jesus ... Old light house ... Arikamedu and also the Pondicherry museum ... Please see taht you hire a two wheeler for yourself as it is the cheapest way to see all the places in Pondicherry ... Happy Travelling !!!