U can do the inpection at the following location:

QATAR TECHNICAL INSPECTION

Industrial Area
Street No. 24
6:00 Am to 5:30 Pm

Lulu Hypermarket
Saturday, Sunday, Monday
8:00 Am to 1:00 Pm
2:00 Pm to 6: Pm

Al Wakra (Hamza Bin Abdel Mutaleb)
6:00 Am to 11:30 Am
1:30 Pm to 5:00 Pm

U need only to bring the car and pay QR75.00. Hope this will help u a lot.