"Neha never cries."
Translation:नेहा कभी नहीं रोती।
In negative present tense sentences with नहीं, the है is optional. You can either use it or drop it. The exception is when the sentence has no other verb except है in which case it should be retained.
In sentences with चाहिए, the है is dropped.
In other types of present-tense sentences, you can't drop the है.