You can reach barshaini via cab. From there you have to trek for 15-20 mins to Kalgha village. Its very easy trek and porter bhaiyas are available if you are uncertain about trekking with your luggage. They will carry your luggage for a nominal cost. Also, pack a rucksack instead of a trolley bag. It will be easier for you to explore nearby places.
I don’t remember the name of the stay, it was a random homestay. Book a hostel for initial days and then find a homestay according to your vibe after you reach there. One advice though, stay away from Romani cafe 😂. Very effed up place.
Its a small village and almost every house is a homestay and cafe. Kalgha has a welcoming vibe, just stay away from hostels that play deafening music(there are a couple of such hostels)