Contact your Relationship Manager or visit a Kotak Bank branch (https://www.kotak.com/en/reach-us.htm) to close your NRI trading account.
Convert your NRI account to a Resident account. You should close your Kotak Bank Pins account.
To open a new Resident account with Kotak Securities, follow the standard procedure: DIY Journey.
To complete the transfer of shares from NRI to Resident account, go to a Kotak Bank branch.