The high court granted the petitioner one opportunity to establish her claim to Indian citizenship.
Sisodia is scheduled to appear before the chief judicial magistrate's court in Guwahati on November 19 in connection with the original case filed by Sarma in June.
There were wounds and bruises on the bodies, including in private parts, of the three youths who were killed in an alleged encounter with Assam Police in Cachar district last month, according to post-mortem and inquest reports.