In Vinay Aggarwal v. State, the Supreme Court set aside the Punjab & Haryana High Court’s order transferring an FIR investigation to the CBI. The appellant was accused of impersonation and extortion, with the complainant alleging police collusion. However, the Court found no exceptional circumstances justifying a CBI probe under State of W.B. v. CPDR (2010). The local police had formed a SIT, and the petition was filed merely three months into the investigation—rendering it premature. The Court emphasized that vague or unsubstantiated allegations cannot warrant CBI intervention and restored the investigation to the local police.