Burden of proving fact which is in specific knowledge  of the party

Section 30 of the Evidence Act 2031 states that , any fact which is specific knowledge of the party  to the litigation , it should be proved by the same  party  to the satisfaction  of the court , for example , in a charge for travelling train without ticket, the party  claiming that he/she had a ticket  at the given  time  , must prove  it by himself/herself. It is a fact  within  special  knowledge  of him/her. This rule  does not cover facts like intention, motive even though they are within special  knowledge  of the party concerned.