In criminal jurisprudence, the liability of wrongdoer can be determined on the basis of the capability and state of mind. It is submitted that no person shall be convicted until he is proven guilty beyond reasonable doubt. In another word „an accused is presumed to be innocent until he is proved guilty. Here, researcher endeavors to state that a healthy mind is involved in crime if he can understand the consequences of his act. In case questioned person is mature enough and has ability to differentiate between rights or wrong he must be booked in the eyes of the law.