@rohiitian JM Financial's case was an example for other NBFC's to stay cautious and adhere to specific RBI and SEBI Norms (like the 1 cr capping on IPO financing), be it SME or Mainboard IPOs.
Similar to Tibrewala comments and ED Raids, SEBI and other authorities have listed out possible solutions to counter these practices.
But all in all, i think neither there has been a rule to stop IPO Financing nor there have been, for now, any guidelines related to SME IPOs. Until there is something concrete from the regulatory authorities, the current run should prevail. In fact, despite these guidelines, the subscription numbers at the current rate validate that there is enough liquidity, keeping aside the IPO funding and other sources of finances.
The markets are volatile anyways and won't be too tied to one negative aspect and should discount the same and move forward, all else remaining same.