What is the best UPSC prelims crash course available in Delhi? Is it reliable?

As I have taken the classes from one of the Institute so I think I am the better person to talk about for Prelims crash course .

I bet no institute can give you the BETTER classes in the prelims crash course than the EDEN IAS and it is reliable and one is not going to regret as I have taken the classes from here so can say the same from my own experience.

Their course is also not very costly, it is worth and value for money.