Bangalore is 4.5 hours ahead of Berlin (winter) or 3.5 hours ahead (summer). When it's 12:00 PM in Berlin, it's 4:30 PM in Bangalore. India does not observe DST.
Berlin uses CET/CEST while Bangalore uses IST (India Standard Time).
Optimal window: 10:00 AM - 2:00 PM Berlin time (2:30 PM - 6:30 PM Bangalore). Late morning calls from Berlin reach afternoon business hours in Bangalore.
Bangalore is India's Silicon Valley, home to numerous German tech companies and IT partnerships.