Need a good hydrogeologist near Bangalore

Hi, I am an agriculturist in Devanahalli, Bangalore rural district. Very recently we tried digging a borewell but it failed. Please provide contact details of a geologist or an NGO near Bangalore or Devanahalli who could help us in identifying a good point source for a new borewell. Also please provide contact details of an NGO that helps with rainwater harvesting and groundwater recharge methods. Thanks and Regards, Vinay Kumar YR
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