Nimish completed his undergraduate training in medicine at Charing Cross and Westminster Medical School in London in 1992. After basic surgical training, he undertook two years of research in neuromodulation of neuropathic bladder dysfunction in spinal cord injured patients, leading to a higher degree (Master of Surgery). Following his specialist training in urology, he chose to subspecialise in endourology (endoscopic laser treatment of kidney stones, ureteric transitional cell carcinoma and benign enlargement of prostate) and minimally invasive (keyhole) surgery, at Guys Hospital and Kings College Hospital in London. He was appointed a consultant urological surgeon at Cambridge University Hospitals NHS Foundation Trust in 2004, and has admitting rights at the Spire Cambridge Lea and Cambridge Nuffield Hospitals. In addition to general urology, his specialist interest include management of renal stone disease, and robotic radical prostatectomy. He is one of the highest volume robotic radical prostatectomy surgeons in the UK with very high success rates in terms of cancer treatment, urinary continence recovery and erectile function recovery post radical prostatectomy. He has been performing Robotic surgery since 2006. He is the lead Robotic surgeon in Cambridge and head of the department of Urology.