I'm sorry to tell you Umish, not all of this is true.
A while ago I had a party, someone brought a large bottle of coke and left it behind. As a scientist I had to try the theory: next time a loo clean was needed I poured the whole bottle in and left it overnight. I was sadly disappointed with the result.
Maybe you need the concentrate for effective cleaning.
The only fizzy drinks I consume are made from grapes
Moira