Hey Arunava, Being in Kolkata ... Getting married ... And looking for honeymoon spot ... You can't get a best destination than Andaman and Nicobar islands ... And march is also the best month to travel to this little piece of lovely islands ..... They are easily Accessible through lots of airlines and are economic too ... Don't think a second thought ... Just go to Andamans ... Places to see here are :- Chidiya tapu beach Vandoor beach Havelock island ... Andaman jail ... Neil islands ... Happy Travelling Bro!!!
Yes, Bali is a beautiful Honeymoon location with white sandy beaches and luxurious but coat effective resort which are perfect for honeymooners. In India south Goa ( such Benelium beach is white sandy beach) has good clean beaches. You can also go to a place called Tarkarli in Maharashtra. If you need more details please ping here.
You can try a one week trip to Andaman Islands and it will cost you around 70k to 75k for a couple. Must visit places are Havelock Island, Neil Island, Portblair etc. You can either hire a travel agent or plan the trip yourself by checking for AIRBNB or OYO resorts or homestays. Don't forget to do Scuba Diving and water sports in Havelock Island. Thank you