Nothing new in Mr Rane's observation. It is probably the oldest Qs going around about Sholay. Have been hearing about it for ages.
Good that it finally got its due "importance"..
There are bigger bloopers in Rajnikanth films where he kills 3 villians with a knife & a single bullet...OR... where he kills the villian on the other side of a high wall by tossing up one gun & shooting at its trigger with the other gun...cummon every one must have heard about those.
In the movie Krish, senior Hritik has gone to build some "super"computer for 2 yrs..then suddenly he gets a call from him mom one day who tell his his wife has give birth to a boy?? HOW ??
Even my village had same situation few years ago, there used to be electricity which got cut and everything that runs on current was available as infrastructure but of no use... Because the connection got cut due to govt negligence and took many years to get back the electricity connection... So the tank was there in the village but of no use...