Now you can get the complete details on eligibility criteria for NEET PG at https://medicine.careers360.com/articles/neet-pg-eligibility-criteria. In my opinion the eligibility criteria remains the same but the procedure and pattern keeps changing now & then the whole year. The government may take several decisions in between. So we must be up to date on this by watching news or getting updates in other social media. As you are diploma is getting completed by June. You must  attend the exams in February and may in two sessions. But its burden to you only as you must attend both diploma & NEET exam. And its not easy to crack NEET exam. It is one of the toughest exams in India. So I suggest to take one at a time. All the best!

See the eligibility criteria for neet is that the candidate should be not more than 25 years old and should have 10+2 qualification if ur fit in this criteria then uh can give exam of ñeet 2019 .

Well talking about the problems of councelling then you just have to show all your documents during the councelling that's it