Finding Colonoscopy Doctor in Nigdi, Ravet, PCMC? Colonoscopy Surgeon in Pimpri Chinchwad? Dr Manoj Kolhe is the Best Colonoscopy Doctor in Nigdi, Ravet, PCMC, Pimpri Chinchwad and Pune. A colonoscopy is an examination of the inside of your large intestine (colon). It's helpful for diagnosing gastrointestinal diseases, such as inflammatory bowel disease and colon cancer. It can also help treat and prevent colon cancer.