I am soo pleased i ignored the negative comments below, i to bought a group on voucher and when i called up to book a table i was told they only had tables available after 9pm, i turned up at 8.30 and sure enough the place was packed out, had to park at the petrol station next door as there wasn't any parking space at the car park, the place was very modern looking and not like other Indian restaurant iv been to that's dark and dingy, was sat down at the bar and was given drinks and told how the voucher works, pretty straight forward stuff, £24.20 off ya bill and anything left over you pay.
Starters were amazing! i recommend the lamp chops, maincourse was nice and lemon pilaw was to die for, service was fantastic, everything on time, nothing late or cold all in all had a fantastic time, the owner even came over and had a chat with us for abit, when i mensioned there were a few bad things written about the booking system they have the owner explained that they sold over 2000 group on vouchers and people often ring up on the busy days (thurs, fri and sat) and expect to get a seat when they want even tho they have been told to book early.
All in all i really enjoyed it and i would recommend everyone to try it out (if you mension its your birthday they even do a song and give you ice cream).
Best advice i can give is if you have a group on book up as early as you can to avoid dissapointment and dont be surprised if you call up on the day expecting to get seated straight away, iv been there twice already, thursday and saturday and both days the whole restaurant has been full.