Jain Dharma is considered anādi — without a beginning — in the Jain view of time. It has existed in Bharat Kshetra through countless cycles of time, and it is said that Tirthankars appear again and again in different eras to re-establish and guide the path of dharma.

For your question:

• How long has Jainism existed in Bharat Kshetra?

In Jain philosophy, it has existed for very, very long, countless ages. It is not treated as something that started only recently.

• How long will Jainism exist in the future?

Jainism will continue as long as the right conditions, living beings, and the flow of time allow it in this era. In Jain belief, dharma does not disappear forever; it appears and becomes less visible according to the changing phases of time.

• Will it prevail for many more years?

Yes, Jain Dharma is eternal in principle. Its outward influence may rise or decline according to the era, but the truth of the teachings remains.

In simple words: Jainism is ancient, timeless, and eternal in Jain thought. It is not limited to a fixed number of years.

If you want, I can also explain this according to Jain time cycle (Kalachakra) in a very simple way.