Indian Medical Association vs VP Shantha & Ors on 13 November, 1995, 1996 AIR 550, 1995 SCC (6) 651 

“In devising a rational approach to professional liability which must provide proper protection to the consumer while allowing for the factors mentioned above, the approach of the courts is to require that professional men should possess a certain minimum degree of competence and that they should exercise reasonable care in the discharge of their duties.”