working in 2g, 4g & 5g RAN-doing health check, MHA - RET recommissioning & related parameter correction. what next2grow?

Hello Pranabendu, thanks for reaching out. There is so much more to know about your exact experience (when did you start, what all roles have you done, educational qualifications, role/location flexibility, etc.). However, responding more broadly right now.
From a technology perspective, 5G is naturally the latest and it will arrive in India very soon too (already in Q3 this year). It is already deployed / under deployment in various parts of the world. Focusing on the roles, you could do different things within services. Deploy - Installation and Commissioning, Network planning/engineering, Care (technical support), and analytics are some options in various BGs - Mobile networks, Cloud and Network Services, and Network Infrastructure. Depending upon your flexibility and competence development, you could look beyond services too e.g. Pre-Sales, solution architect, and customer-facing roles in the above technologies. I wish you the very best.