Dear aspirant,

I think there has been a slight misunderstanding on your part or in typing the question. You can login into your account (provided you have created one) by going to the official website of NTA and typing your application number, password and security pin mentioned there.

For getting admission into a medical college though, you will have to wait till your NEET results come out which would be accessible to you on the official website. Once you have your result, you will have to wait for the MCC ( Medical Counselling Committee) to start the process of counselling on their official website. You will have to participate in the counselling by registering yourself after which you would be allotted a medical college if you clear the cut off.

Hope this helps :)