Delhi Police — over speeding

Wrong challan for overspeeding
I have been issued actually 6 e-challans of rs400/- each for over speeding, out of which 2 e-challans i paid as the picture was not opening and i had no proof.
But the details of the remaining 4 e - challans are given below out of which i am guilty only once.
Vehicle no. Dl 9caq 1487
At carriageway from sarai kale khan to akshardham near just after yamuna bridge towards ring road

Notice no.
[protected]:17:00 69 km/h
[protected]:09:00 70km/h
[protected]:08:34 67km/h
[protected]:55:21 73 km/h

The speed limit on this road shows 70 kmph for the cars and i was within the limits 3 times.

I would like to request the concerned authorities to look into the matter and justify and withdraw my e-challan notices.

I will pay only one challan where my speed was 73kmph.

Regards