PVC pipe got stuck during borewell process


We live in triplicane Chennai, our previous borewell was 60 feet and water was good. My neighbor drilled bore for 200 feet then suddenly next day our borewell went dry and the problem starts, so we planned to drill new bore for 250 feet with same contractor who drilled bore for our neighbor.

He drilled bore for 250 feet but when they try to insert 5 inch PVC pipe it got stuck at 60 feet they tried to rebore again but pipe didn’t went inside due to soft sand fall. Our money went waste and still no.water.

Now there is no place to drill new bore since each bore should be alteast 5 feet apart. Can someone help us on how drill bore and insert PVC pipe simultaneously and can we drill bore next to our previous borewell.