Need advice on drilling borewell at my residence

Borewell advice sought


I am planning to drill a borewell in my residence. We had a well of 70ft depth which we stopped digging after it ended in rock, and we get very little water from there.

My query is :

  1.  Can we use same well and continue on digging for borewell?
  2. If possible #1, then what will be approximate cost?
  3. If not possible #1 then what will be approx cost?

Any additional advice and suggestions are most welcom. My location is Gandhi Mandap, South Sarania, Guwahati.

Thanks in advance