Key Points
Am I allowed to keep my local Indian bank accounts?.
Since you are a non-resident working abroad, you should have converted all your local bank accounts into Non-Resident Ordinary (NRO) accounts immediately upon leaving India to take up employment outside India...
Since you are returning to India to work here and stay here indefinitely, you will become a resident of India under the FEMA provisions, which govern banking and investments by a person in and outside India..
Since you will become a resident for FEMA purposes immediately upon your arrival here in India, you are not allowed to have an NRO account, NRE account, or FCNR account...
Your Indian income will become taxable in your hands irrespective of your residential status under the tax laws...