Indian Evidence Act, 1872
146. Questions lawful in cross-examination
When a witness is cross-examined,
he may, in addition to the questions herein before referred to be asked any
questions which tend-
(1) to test his
veracity.
(2) to discover who he
is and what is his position in life, or
(3) to shake his credit,
by injuring his character, although the answer to such questions might tend
directly or indirectly to criminate him or might expose or tend directly or
indirectly t expose him to a penalty or forfeiture.