Delhi Development Authority [DDA] — dda aso exam on 20th sep 1st shift

Sir,
I had taken my exam of dda aso on 20th september 2017 at iimt management institute, greater noida. Due to heavy traffic i managed to reach there 5 mins earlier than gate closing time. But i had mistaken to wear full sleeve shirt as i was in rush, the person on the gate was rudely ask me to wear any other half sleeve clothes but i don't have had that time after requested he allowed to enter in college and i fold my sleeve as he said but before 15 mins of exam he again came to my lab asked me to remove my shirt i insisted him to check in private but he not agreed and i had to remove my shirt in front of whole class which was really an embarrassment to me but i didn't have any other option and i had to sat without shirt for whole exam time. I want to ask dda that after 2 years they organised a preliminary exam and due to my one mistake i had to remove my shirt. Is really it would necessary to do. Investigator check me in private if he has any doubt. It was really shameful for me, i can't forget this incident.