"The appellants can legitimately claim right to use force once they saw their parents being assaulted and when actually it has been shown that due to such assault and injury, their father subsequently died," a bench of Justices Dipak Misra and Shiva Kirti Singh said.
The apex court said when the prosecution has suppressed the genesis and origin of the occurrence of the incident, the only possible course left open was to grant benefit of doubt to the accused persons.
The two men were convicted by the trial court for the offence of attempt to murder, but the Rajasthan High Court had held them guilty of attempt to commit culpable homicide.
Challenging their conviction, the two men had claimed that the prosecution's case was false and brought witnesses in their defence to show that members of the prosecution party had beaten their father, leading to his death.
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Their mother and others had also received injuries in the incident which was proved by a doctor.
The court further said that adverse inference must be
drawn against the prosecution for not offering any explanation, much less a plausible one, on injuries caused to the accused, as also their father.
"Therefore, we have no hesitation in allowing the appeal and acquitting the appellants of all the charges. We order accordingly.
"They shall be released from jail custody forthwith, if not required in any other case. The appeal is allowed," the bench ordered.