Does Postal Savings Bank provide SMS notifications for physical examinations in batches?

Yes, many banks will do this. This is normal. If there are a large number of people admitted, the bank's internal work efficiency arrangements will be affected and the designated hospital restrictions for cooperation will affect the review efficiency. If you notify them all at once to go for a physical examination, the hospital may not be able to accept them. Basically, they will be notified in two batches.