Which one of the following is not covered under Article 20 of the Constitution?

Article 20 of the Indian Constitution- Protection in respect of conviction for offences (1)  No person shall be convicted of any offence except for violation of the law in force at the time of the commission of the act charged as an offence, nor be subjected to a penalty greater than that which might have been inflicted under the law in force at the time of the commission of the offence- Ex post facto laws (2)  No person shall be prosecuted and punished for the same offence more than once- Double jeopardy (3)  No person accused of any offence shall be compelled to be a witness against himself- Self incrimination