Hey Ankush !
Do accept my heartiest congratulations upon securing a wonderful score of 563 in this year's NEET.
Indira Gandhi Institute of Medical Science, Patna is quite a renowned college in the state of Bihar and every year, many of the best minds of the nation have an access to it. Before answering your question, let's look at the stats of 2018.

2018 :
Cutoff Marks of IGIMS State Quota : 536
Closing Rank : 10,516.

As we see, your score of 563 is actually well above and well placed than the cutoff for this elite college. Accordingly you should get in, but we have seen 2 major aspects in this year's NEET
1. Easier level of paper.
2. Skyrocketing of Examinees.

These 2 factors most likely are to raise the cutoff throughout India and hence the cutoff for IGIMS too might go up.
But as far as I think, the bar wouldn't be raised so high as to reach your score and hence there's an almost 90% chance that you would make it through.

Do have a look at the cutoffs and ranks of different colleges of Bihar in 2018 through this link :

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-bihar/amp

Hope I could assist you.

All the Best !

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