Hey hemant!

Since you are from Haryana ,you will obviously apply under all India quota and the minimum score needed for a student under all India quota to get admission in MS Ramaiah Institute is 540+ and this year the cutoffs are expected to be higher so the minimum score needed is expected to be 560 +and since your score is 566 which is more than 560. You can have good chances to get admission in MS Ramaiah Institute but cutoffs fluctuate every year and nothing can be predicted accurately about them so it can also be the case that the cutoffs can go up to 570 so you have no chances in that case .

I suggest you to  have a backup option in that case by predicting other colleges where you can get A seat 

 You can check the other colleges where you can get a medical seat on the basis of your Neet all India rank by using NEET predictor tool:

https://medicine.careers360.com/neet-college-predictor?icn=neet-clgpdici%3Dqna-answer