the prosecution has to prove the case without relying upon the defence

One of the cardinal rules in criminal jurisprudence is that the prosecution has to
prove the case without relying upon the defence. The following observation of the
Hon’ble Supreme Court in Sharad Birdhi Chand Sarda vs State Of Maharashtra on
17 July, 1984 [1984 AIR 1622, 1985 SCR (1) 88] is relevant in this context:
It is well settled that the prosecution must stand or fall on its own legs and it
cannot derive any strength from the weakness of the defence. This is trite law
and no decision has taken a contrary view.