It is  less likely you will be eligible for most officer positions in the Indian Armed Forces with an Arts degree and banking experience.

The SSC (Officers) entry allows graduates from any stream to apply for specific roles in the Army (Non-Technical), Navy (Logistics), and Air Force (Ground Duties). The age limit for entry can vary between 25-30 years old depending on the service and branch. Given your age and experience, this might be a challenge.

The Territorial Army is a part-time reserve force with openings for officers. There might be openings for Arts graduates with relevant experience, but selection is competitive.

I hope it helps!