Your question seems incomplete. In Jain dharma, what “happens” depends on the place or gati you have in mind. Here are the common possibilities, in very simple terms:

• If you meant “born in hell (Naraka)”: no human is born there. Souls born in Naraka are called naraki; they only suffer the results of very heavy papa, for a fixed (but very long) time. After finishing that lifespan, the soul moves on according to its karma.

• If you meant “born in heaven (Deva-loka)”: no human is born there either. Those births are as devas, who enjoy pleasure due to punya. When that life ends, the soul again takes rebirth according to karma.

• If you meant “born as a human (Manushya-gati)”: this is the best gati for dharma and for destroying karma. One should use human life for Right Faith, Right Knowledge, and Right Conduct, doing samvar and nirjara to progress toward moksha.

• If you meant “born in animal/plant realm (Tiryanch-gati)”: that is not human; such births are due to delusion and passions. After finishing that life, the soul moves on by karma.

• If you meant “born in today’s era (Pancham Kaal) in Bharat Kshetra”: according to tradition, kevaljnan and moksha are not attained here in this era, but one can still do intense punya, samvar, and nirjara, purify the soul, and prepare strong causes for future liberation.

If you share the exact phrase you intended after “born in …”, I will give the precise Jain view accordingly.