Need advise on increasing the yield of the borewell by using a higher capacity pump

Hello,

We have a borewell in our farm which was dug 6 years ago at a depth of 335 ft, we got 1.5 inch water, the borewell is however 450 ft deep. We have a1hp pump at a depth of 100 ft. The borewell is continously run with this pump for 1.5 inch water pipe for last 6 years. 

I am now looking for possibilities of increasing the capacity of the pump to 3 hp or even 5 hp to get continous flow of 3 inches water. I need suggestions as to whether this is feasible? If so, at what depth should the pump be fixed.

My email ID is ca.kumarpk@gmail.com

Kind regards

PK Kumar

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