I live in North Vancouver, but have made many weekend road trips to Surrey just to go eat there. What they serve there is pretty authentic Pakistani style food (yes I know), not Indian. There are some slight differences between Pakistani and Indian (then there are lots of regional differences within Pakistani and Indian but thats another story).
Anyway, the food: They have Nihari (spicy beef curry?)for $5.99 for a decent size serving, along with a $1.50 (i think) naan and you will be full and it will be very tasty. They have chicken Biryani (rice dish) for $5.50 and its a giant serving, you can feed almost 2 people with it or one hungry teenager.
One particular thing from Pakistan that is very hard to find here is something called Chicken TIkka. This is not the chicken tikka you get at Indian restaurants, its Karachi style chicken Tikka and it is very tasty. I think the boneless chicken tikka with rice or naan is only $5.99 while the leg quarter chicken tikka with salad is $3.99.
The ambiance is so so, it looks like a cafeteria, you order your food upfront and pay, then you sit and they yell out your order and you pick it up. Its clean but not the cleanest. Don't go there for a hot date, but do go there for a hot meal. I just wish they didnt microwave the nihari.
Lots of south Asian customers are there, which you will see if you go there. They also have some donair dishes but I have never tried them so I cannot comment on them. They have other Pakistani dishes there too but I have not tried them all.
If you want hot spicy Pakistani food that is pretty damn good and pretty damn cheap I highly recommend this place.