Need info on water purifier - RO or UV filter

Sir / Madam,

I am looking for water purifier for my house. I stay in apartment & use borewell water, I am unable to decide on the product since they are confusing me, the current TDS (tank water) is 301 , that was checked by sales executive & he suggested me to the best should be below 60. Some say RO system is not good it will kill good bacteria, etc. some say UV is fine. Please suggest me how to decide the best water purifier.

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