Reaching Kasar :
By Air - From Delhi - one can fly to Pantnagar airport and then hire a private or shared taxi to Almora/ Kasar.
By Train - I would recommend this as the most comfortable way of reaching. Train from Delhi to Haldwani/ Kathgodam - the last station in this region ( also very scenic) and one can get shared/ private taxi easily to Almora / Kasar.
By road - One can drive down from Delhi which is about 340 kms or take over night buses to Almora.
Staying in Kasar :
Accommodation is available for all budgets in Kasar. Here are a few of my recommendations:
Budget Friendly - GoStops Kasar, HOTS hostel, Stars and Pines , Ram Singh Guest house ( the oldest guest house in town with some majestic views), Sunny Side guesthouse.
Mid - High range Hotels - Mohan's Binsar Retreat, Imperial Heights, AyurVaid Kalmatia, Kasaar Jungle Resort, Kasar Himalaya Holiday Home.
My personal choice of stay would be - Shantiniketan ( a mountain home with the best services and people). It is a 3 bedroom large guest home with amenities and food better than any hotel and the warmest people who own/ run this place.