Oath as a Witness

            When a witness is called to the witness box, he must take an oath before offering testimony.

"The evidence which I shall give to the court shall be the truth, the whole truth, and nothing but the truth," must be repeated by the witness when taking the oath. Saying "I do swear in the name of God/solemnly affirm that what I shall state shall be truth, the whole truth, and nothing but the truth" is the required statement for a witness wishing to testify in solemn affirmation.

No failure to take an oath or make an affirmation, no replacement of one person for another, and no irregularities of any kind in the form or manner in which any oath or affirmation is administered , shall render inadmissible any evidence whatever, in or in respect of which such omission, substitution or irregularity took place, or shall affect the obligation of a witness to state the truth?

1.  Section 4 & 5 and the Schedule of the Oaths Act, 196