I got the battery checked form a battery shop today . Yes dj.nish you are right , these batteries do not need any water toppings .The person told me that the capacity of battery had gone weak . It was showing 9 volts at start up which should be 11 volts according to him . The battery had a guarantee of 1 year and my car is 1 year 10 days old , so cant go for the replacement. I am really surprised to know that exide batteries have this poor life . Amaron in my NHC was way better than this one.