There are many Home stays available at paragliding landing site road. Few are, garden cafe, shangrai guest house, Manoj Home stay. All the home stays are good. For paragliding and biking you can you can get many agents while exploring the village. You can decide it there and then. Price for tandem paragliding is same everywhere and all the pilots are good.
Hey Gowrish, I googled a few places for you to stay in Bir, you can contact the hotel or homestay for paragliding, biking and trekking.
Tatva Bir Camp, Sky View Camps and Nature Camps. It would be better to check before you go for Paragliding as it might get closed around mid June.