PCNL is one of the several procedures that aim to remove kidney stones. Kidney stones are formed when the waste materials in the urine build up and stick up to the walls of the kidney and the ureters (the tube that connects the kidney to the bladder). These waste materials are usually salts and minerals that crystallize over time. Among the many techniques, PCNL Surgery in Delhi at Irene Hospital, is one of the successful techniques that is offered for the removal of kidney stones.