Though minute stones can be removed with medication and be passed through urine, larger ones require surgical or non-surgical procedures. The extensive procedure is carried out by the best urologist in Delhi , Dr. Niren Rao at Delhi Urology Hospital to remove decent-sized renal stones is surgery. This requires anesthesia as well as an incision in the body. To avoid incisions and to treat renal stones more effectively, a procedure called RIRS or Retrograde Intra Renal Surgery treatment was developed with the advancement in technology. This is a comparable creative method in the field of renal stone treatment.