You guys can do a 10 days long tour exploring Bhutan. Visit the main spots like Thimphu,Punakha,Chelala Pass along with Paro to make your winter holidays awesome.
Hi Sahil, December is a good time to go to the beach with the boys, so i suggest Gokarna, Goa, Pondicherry and Andaman are good options, if you're looking for a budget on the same line you can take a trip to Thailand as well. On the contrary December is a good time to experience the snow in the hills, and go on an all boys trek in the mountains. Go through the following article to get more information about such places: