witnesses in a plethora of cases, stating that a witness may be
called interested only when he or she derives some benefit
from the result of a litigation, which in the context of a
criminal case would mean that the witness has a direct or
indirect interest in seeing the accused punished due to prior
enmity or other reasons, and thus has a motive to falsely
implicate the accused (for instance, see State of Rajasthan v.
Kalki; Amit v. State of U.P.; and Gangabhavani v. Rayapati
Venkat Reddy).
"10. As regards the contention that all the eyewitnesses are close relatives of the deceased, it is by now wellsettled that a related witness cannot be said to be an ''interested' witness merely by virtue of being a relative of the victim. This Court has elucidated the difference between ''interested' and ''related' witnesses in a plethora of cases, stating that a witness may be called interested only when he or she derives some benefit from the result of a litigation, which in the context of a criminal case would mean that the witness has a direct or indirect interest in seeing the accused punished due to prior enmity or other reasons, and thus has a motive to falsely implicate the accused (for instance, see State of Rajasthan v. Kalki, (1981) 2 SCC 752; Amit v. State of Uttar Pradesh, (2012) 4 SCC 107; and Gangabhavani v. Rayapati Venkat Reddy, (2013) 15 SCC 298).
52. We are not impressed by this argument. It is a
settled rule of appreciation of evidence that the evidence of
a witness cannot be impeached through the evidence of
another witness. The credit of a witness could be
impeached only in the mode set out in Section 155 of the
Evidence Act; secondly, as pointed out by the learned SPP,
the accused having not challenged the statement of PW-6,
which according to the accused is contrary to Ex.P6, cannot
now seek to dispute this evidence on the ground that the
same is inconsistent with the contents of Ex.P6. We find
support for this view in GANGABHAVANI Vs. RAYAPATI
54
VENKAT REDDY AND OTHERS, 2013 CRL.L.J. 4618 (PARA
83. The Supreme Court in the case of Gangabhavani v. Rayapati Venkat Reddy, AIR 2013 SC 3681, on the issue of contradictions in evidence has held as under:-