Ok so I saw this bike last night (23rd Jan 2014) near Mohammad Ali Society on Tipu Sultan Road around 10 40 PM.
It looked something like this sorry for being so vague about it. I have extremely little knowledge about bikes but extreme OCD and now I have to know which model it was.
It was infront of my car and I was able to get a glimpse of the rear of the bike and then it just zoomed ahead.
Here is a rough sketch of what I was able to see.
I know its not much help but the brake light was really unique ( like really cresentric and thin) and I thought it could help determine which bike it was. May be the owner is also reading this.