thanks again to everyone...
@nightsurfer: thanks a lot.. even i feel i;m the lucky one when it comes to owning a ride thts like a family member to all of us.. 
@bignate.. i'll arrange pics soon...
earlier the cylinder used to fill for rs. 190-200.. while cleaning the cylinder,, around 1.5-2.0 liters of oil sort of fluid came out..
now the cng fills for rs. 240-250..
average is the same.. costs abt 2.0-2.25 rupees per km..
@kamil.. i know these ppl since many years.. they really did this work on a good rate.. everyone's surprised.. 