Hi Abhishek, Kedarnath is cold for the most part of the year, however, May to June and September to October are the best time to visit Kedarnath. This means tat avoiding the winters while planning your trip might be a wise decision. Winter ranges from November to April, reaching sub-zero temperatures along with heavy rainfall. Here are few suggestions created by real travelers on Tripoto. Please take a look. Thanks!
First mark your base in Haridwar, then you'll find bus or cab for Guptkashi. From there you can trek to kedarnath. Try to visit during last october. As due to stable weather, road conditions will be better