I travelled to manali in march. First I went to gurudwara near to manali. Here you will see hot water baths from rivers even at 2° celcius temp. Outside which seems amazing. Then we travelled to kheerganga which is the best place for camping. Roads was not much good but you will enjoy. All roads were covered with snow. Then we went to manali and booked a hotel near mall road of manali which costed us almost 1200 per day for a single room. Hotel rent was genuine not much high. You will see the snow in morning and in nights also. At morning the whole environment looks white and very beautiful. It feels so cold at temp. -5°-5° of range. But that will be enjoyable.