This shell i got from Sony Agency and cost is just 290rs per piece.

i feel it not bursted fully ,if i get any other next time will try and compare it.

Here there contact details

Sony agencies
http://sonycrackersagenciess.com/price-list/
7200637293
9543444242
8428757962

i thought the shell will burst at short distance but it travel little bit above my expectation :)

Positive Points:

1.Width of the blast good
2.Pattern is very unique and i loved it

my rating :
8/10