The real Paki girl
The real Paki girl thanked John Doe's answer
I am a Pakistani girl, and I am in my 30s. I have been told by many people that my breast is larger than the average size or even more! I just want to know what is the measuring scale which tells whether the size of the breast is normal, small, large?

There is no "normal" breast size....you are what your genetics tell you to be. Normal is exactly what you are....not what someone says you should be.

The real Paki girl
The real Paki girl thanked Anonymous' answer
I am a Pakistani girl, and I am in my 30s. I have been told by many people that my breast is larger than the average size or even more! I just want to know what is the measuring scale which tells whether the size of the breast is normal, small, large?

Usually, if the measured circumference of your breasts is much larger than your measured circumference of your hips, they may be larger than usual....but hips and breasts  can both be large so it's really a tricky question...hard to answer....