Centrewise Results are different MAJORLY from overall result

the general pass percent of all india in final is 8-9% for both group.. while in smaller centers we have 3 students passing both group out of 140 students ... this is 2.5% result!!!! compared to overall 8 % this is truly unfair for students of smaller centres. and even more surprising is my 4 frns who have failed previous 2 attmepts ALL PASSED when they changed to a bigger centre!!! THIS IS TRULY UNFAIR even if result waas 5% in smaller center it would have been justified ..but one-third of average result is BS BUT ALA WE CAN DO NOTHING ABOUT IT ....