Shenzhen is 2.5 hours ahead of Delhi
Best overlap: 8:00 AM to 4:00 PM in Delhi is 10:30 AM to 6:30 PM in Shenzhen.
Keep meetings inside 8:00 AM to 4:00 PM in Delhi — that maps to 10:30 AM to 6:30 PM in Shenzhen. Because you share 8 hours of the workday, there's no need to compromise; book the time that suits the meeting, not the map.