hey @Samsul_jahith 
This would be a great place to start if you're ready to go:
https://community.databricks.com/t5/events/dais-2025-virtual-learning-festival-11-june-02-july-2025/...
With links to the learnings paths, and 50% off vouchers for the exams at grabs.

I believe all official certifications from Databricks are paid however, so I'd leverage any vouchers you can!
Good luck!
TheOC