Hello
To apply for vacancy you have to wait till they announce there vacancy you have to keep on checking there websites for vacancy keep your self updated they post there vacancy after council are done it's very late all these vacancies come during end of July and 1st week if August so you have to wait till then keep in checking after 3rd merit list and also they mention the criteria along with it like the eligibility criteria and all the related information.
Now the expected colleges that generally announce vacancies are onwards nlu bhopal and jodhpur it's very rare to have vacanct seats in top 3 nlus.
I hope this helps you and if you have any more questions please drop a comment below.
Best of luck