Why Indian stock exchange do not have lunch break?

Why Indian stock exchanges do not have lunch break ?

@anon31396786 ::: As i understand already brokers are working minimum from 9 am to 7 pm that is 10 hours . Lunch break will (1) Break the flow of market (2) Brokers may need to work in 2 shifts .

There are stock exchange in other countries with lunch break time.

I think Indian stock exchanges should introduce lunch time break.