350 ft borewell motor not working in Avadi, Chennai - Is it a problem with the motor or the main box or the wiring? Please help

Hello Sir,

I am a student, doing my MBA and residing at Avadi, Chennai. We have a problem with our motor. We dug a bore of 350 ft and motor is kept underground now and it shows some problem.

When we switch the motor on, the amps is not moving and water also not flowing. We thought that there is a problem in our main box so we changed our main box but still the problem persists.

Please clarify as to what exactly the problem could be - Is it a problem with the motor or the main box or the wiring?

Regards,