How Many Bank Accounts Should a 25-Year-Old Professional Maintain? My Current Setup & Looking for Advice

I'm 25M and working in corporate.

Currently I maintain 3 bank accounts:

1. HSBC (salary account) – salary credit, daily spending, bills, EPF linked.

2. Union Bank – investments (FD/RD, MF, Demat, NPS, PPF, insurance, crypto).

3. Karnataka Bank – emergency fund only.

Do you think this setup is good, or am I overcomplicating things?

How many bank accounts do you maintain and what purpose does each serve? Any changes you'd suggest for better money management, tracking, or security?

Looking for serious opinions and real-life setups. Thanks!