So, finally, 4th Nov, Friday night, we boarded HRTC bus from Kashmere gate from Delhi, per person fare was 1200. I would suggest, to book ticket at least 2 months prior because we were lucky to get seat else it is always full. It was 8 PM , when bus started from Delhi. On the way near Murthal, Bus stopped for dinner. There are couple of restra and small dhaba where one can have hearty meal for 100 bucks.
We reached Mandi town next day (5th Nov) morning at around 8 am and checked into Rajmahal Palace Hotel. Rent was 1500 bucks per night which was quite alright for 2 people, with 2 bed, attached bathroom, and a TV. Very basic amenities available. But ambiance was quite surreal. Oh! forgot to tell you, we have booked this hotel in the last of Oct only, but again I would advise book at least 1 month prior. Luck was with us, so we have got the hotel room.
We have got freshen up quickly as we didn't want to waste time because we had very short time for that trip. After talking to reception guy, got to know that it's better to head towards Prashar Lake as it was winter and hills become dark soon. We asked him to arrange for a taxi, and after 20 minutes taxi driver was at our service. It was November, so fare was quite less, it was 1500 to and fro (mandi-prashar-mandi). It took 1.50 hour to reach prashar lake.