We are getting murky water from borewell in an independent house in Hyderabad: Want to know the reason and a remedy

Hello,

We are living in Hyderabad in a independent house using a borewell for our water requirement. On an average we draw approx 500 ltrs per day for consumption. We have been using this for the past 14 months. For the past week, the water drawn from borewell is murky.

Please let me know what could be the reason and a remedy.

Thank you,