ok guys here it is a verified exceptional milage alert of my ride MA.
560 KM in 37.28 Litres = 15 KM/Litre. - all city driving. no long trip at all.
ok the reasons are mentioned below
Recent maintenance done (new oil, oil filter and air filter). Micking 5w-50 as shown on my thread.
Iridium plugs with cleaning on every oil change i.e. 5000 KM.
Proper tyre pressure in all 4 tyres
proper alignment and balancing
normal driving (not exactly hypermiling- but not sporty either)
periodic cleaning of the ride
and last but not the least. Fuel from the right place i.e F8 PSO or Constitution avenue PSO in ISB.