Query approved.

Did the bike stop at 90kmph?

Do check if there is some problem with current leakage somewhere.
If the bike refuses to start, there could be a case of relay shorting.
Or, the roll over sensor could have gone kaput.

How did it feel like when it stopped? Was it like the fuel went off or engine friction? Did your lights go off before the halt??

@JonnyRider - You may want to check out this excellent post. Your issue may or may not have been discussed, but it is worth going through the post.

i faced the same problem with my 220 F and in my case the power was going off all of a sudden on its own and then display went off even in the ignition-on key position.
It was found that the lock was the culprit and the links inside the lock had sulphur in it !
Get the lock checked !

Did u nt enquire the reason for sulphur acumulation there??

@Praful: you are right. The engine stalled at 90kmph...but the bike was rolling on, so I managed to pull over at road-side

@Mik: that's some lead, I would say. Tomorrow will go to the service centre & ask the mechs.

@Mecho: It felt as if fuel is over...but then I had good amount of it...i wasn't running with lights/console display

@argee: I saw the post from the Bike-Advice, few weeks ago...have now seen once again...my bike behaves close to #13, but even if it stops, I use to switch ON the ignition to start again...it also comes close to #16, only once in 3 years of service did I manage to rip it off till 129KMPH after which the engine was over-heated & shut off

@smoker: all other electricals are still functioning properly...only engine isn't idling...within a second of starting, it's shutting off...as if loosing power due to no fuel...Sulphur is an interesting hint...will try to check if any such thing is there
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Latest news of my bike is, the service centre near to my house (the one on GST road, near Chitlapakkam) has brought my bike from Sri Perumbudur shop...tomorrow I will go & check the progress...

Never mind on 13 or 16 as you've an FI

Looks like a symptoms of lean too; How about the fuel pump, have you had a chance to service the fuel pump?

IMO, take it to PBK, sit with them, explain the symptoms. All you need is only hearing ears, not deaf & fast working hands.

@argee: I had to replace my fuel tank couple of months ago, because of a leak on it...so I have got a new tank with the pump fitted...do you think I should talk to mechs about checking that one, if any problem is in?

^^^ could be
Ideally the rate at which the air enters to the fuel tank should be equal to the rate of dispensing the fuel from the tank. If the fuel dispenses more than the speed at which the air fills, there's a vaccum & thus fuel cannot dispense easily.

From what I understand, in the case of FI vehicles, this type of issue is rare to happen because of the fuel pump & that's the reason I suspect the fuel pump. That's why I said, you need hearing ears who can listen & understand the problem rather than jumping to work on something that they think they know.

^^alright...Today when I'll go to the shop, I'll ask the mech about this...you have given an interesting hint...

Do it carefully & don't make him feel that you're more knowledgable than him. Talk casually ONLY about the issue & see where he throws his ideas on the issue.

Your Engine Seized. Engine would need replacement. Open the engine oil drain screw and you'll notice there's no oil left.