Can a counter FIR survive without evidence and with delayed allegation

I am seeking legal clarity regarding a counter FIR registered against me on an alleged incident is said to have occurred. There is no digital evidence, No specific time or clear particulars are mentioned for the alleged acts, There is an unexplained delay of about 11 days in lodging the complaint, despite the complainant having access to the police from day one. The counter FIR was lodged only after my parents filed FIR alleging sexual verbal abuse, criminal intimidation, and threats against them. The counter FIR relies mainly on statements of multiple witnesses, some of whom were not present at the alleged incident and appear to be interested or related persons. My concern is whether such a counter FIR, apparently filed after the earlier FIR and primarily supported by delayed and allegedly interested witness statements, can legally survive, or whether it can be considered an abuse of process intended to pressurize or harass the original complainants rather than to seek genuine justice