BDS

The expected cutoff is around 200 to 250 marks in neet to take admission

Yes you will get admission in any private colleges.

BDS cut off for Hazaribag college is around rank 1,50,000, it may also increase based on the choices made by students.
Check college prediction by Shiksha to know more details.

Cut off for BDS course at Karnavathi University is around 17000, for general quota.
For more information go to,
https://www.shiksha.com/college/karnavati-school-of-dentistry-karnavati-university-ahmedabad-58791/cutoff

Cutoff for BDS in BBD University for 2022 is 20000 for general quota round 1, reaches upto 40000 in round 2.
For more details go to,
https://www.shiksha.com/university/babu-banarasi-das-university-lucknow-33058/cutoff

Cutoff for BDS course in GDC Ahmedabad is around 21000 in 2021 as it a new college and the infrastructure is good; it is believed that for this year cutoff may decrease.

With 226 marks getting a BDS course is easy than MBBS course.
You have to register yourself in mcc.nic.in during councelling and make a list of colleges you want to attend from as wanted college in first place and least wanted college in the last.
Based on your rank and your preferences of colleges you will be alloted to a seat.

With 553 marks you are sure to get government college for BDS. All government colleges have similar fee structure which is around 30000 per annum, so I suggest you to consider best college instead of fee structure.

Presently, the cut off is around 430marks for OBC general quota.
From previous year's cut offs for MGM is 350+ for general category even for SC or OBC category is 300+.

Yes, definitely. Cut off for BDS in government college will be around 450 marks for general quota so you are sure to get a BDS seat in government college.
You can even try for MBBS if you are female as there is additional 10% quota for girls in every government college.