As per this support page -
Normal (NRML) is used for overnight trading of futures and options. If the client does not want any excess leverage, he can use the product type NRML, and he would not have to worry about auto square-offs. NRML product code is also used for Delivery based trading of Currency.
Also, as per this thread -
I wanted to ask, how was the NRML order type used for Equity trades?
Are order types available for trading in a particular segment decided/fixed at the exchange level or does the broker have the ability/leeway to change them as per their choosing?
Are order type names (like CNC, MIS, NRML) only symbolic in nature? By that I mean, the order type name that is visible to a client in the Kite frontend different from the order type name at the OMS/Exchange level?