They provide no extra knowledge. Just the same thing which is written in each in every book of JEE and NEET preparation is just being taught by their faculty on the digital board. No tricks, no memonics NOTHING. If you guys wish to score well then plz dont buy their video lectures. I bought the video lectures of mathematics but only the differential calculus portion which was taught by Ganesh Pawar sir was good and rest all was not even benificial.