Shubham, welcome to ITB site and hope you would find it full of information regarding the tourist places. Please go to different sections here and enjoy your interest and liking material. Are you having interest in writing articles or travelogues? If yes write and submit here. You would be greatly benefited in improving your writing skills as well as there might be some earning if your quality is up to the mark. So stay, contribute and learn.
If you want to know which are the good places in India to visit in December then I think that except some chilling hill stations all other tourist places in India are good for the occasional visitors. You have to choose a place depending upon your interest like natural beauty or sports or picnic or gardens etc.