[bajajpulsar] a peculiar issue wit my bike

[abhay]

when i stop my bike after riding and switch-off d engine, then i hear 
some sound like "water dripping; tip..tip..tip..tip" from d fueltank.
this sound lasts for abt 2-4min and then stops. sound comes frm 
fueltank area only. my bike is riding fine n there r no problms while 
riding. mileage is 45kmpl. pulsar 150-ug3. 
most probably sound could be of the fuel in d tank, but there is a 
dripping sound. is it normal to happen????
plz reply if the sound comes frm ur bike also.
thanks