Is the grammar correct?

@DarkHeaven but is the answer “of” or “for”

@Jenny1234 sorry “for” is better usage but technically neither are wrong.

@Jenny1234 and she can drop the “a” and concisely say “for surgery.” The “a” in front is very unnecessary if using for.

@DarkHeaven No comma, as that would create a needless pause.

Inserting or omitting the indefinite article after "for" completely changes the meaning of the whole sentence.

Using "for surgery" tells of a patient's need; but "for a surgery" tells of a town's need - for a health-centre.

@ArishMell no, it doesn’t. It may be unnecessary, I’ll go with that. But it changes the actual meaning… none. It does not make it mean anything… about the town that was not discussed anywhere, at all.

@DarkHeaven We were not given the context, so do not know if it was about an individual or some public matter. So I reacted to both possibilities - as the OP accepted.