Hi sir, my name is Arjun. I’m from Kerala. I just wanted to say u a big thank you. Whenever I got a doubt I use to listen Ur YouTube lectures. And with that I could clear every single doubt. You make students understand the concept and not just be hurry with the portions. Thank you sir. Thank you very much. Actually I bought other faculty pen drive classes. But whenever I get doubt on his concepts I use to watch your video lectures on YouTube. May be I bought the pen drive without analyzing.