Hi Pooja! If you're visiting Kullu Manali to enjoy the snow and the snow sports, then winters are the best time for you to head to Kullu Manali. During winters, you will also be able to witness the festivities around Raghunath Temple. The easiest and most direct way to travel from Varanasi to Kullu is to take a train from Varanasi junction till New Delhi. In New Delhi, you can take a direct bus from Dhaula Kuan bus stop to Kullu. You can check out these trips and holiday packages for more details and information. Happy Travelling!