For applying in an IPO ,what will be the category of 'Private Family Trust'?

Private Family Trusts can apply for IPO in non-institutional (NII).

Private family trusts are used to plan for succession. It protects the interests of legal heirs. Depending on the wishes of the author, the trustee of the private trust may be a relative, a family member or a professional team. The trust can also have a managing trustee or trustee as the author.