No its not necessary same situation i have faced two years ago . Firstly choose he best one among yout choices where you want to go and consult with that college admission staff in advance and get assurity whether you will get seat or not. In most of the cases if you already contacted with admission staff then they definitely helps you a lot just maintain a good contact with them. Now for safe side the other option which you have consider it on hold and again contact their management team and tell them the situation :)

all the best

You have to pay 2 lakhs only once and that too only during the registration process. Soon you're registered, you'll be directed to a portal where you can select the colleges according to your preference and you do not need to pay for every college you select.

I hope this helps you, good luck!