You can hold only one PIS Bank Account in NRE status ( with repatriation benefits ) and one PIS Bank Account in NRO status ( without repatriation benefits )


However you can hold multiple SB NRI Accounts with multiple banks.


Further a PIS NRE Bank Account has to be necessarily be attached to one SB NRE Bank Account 

Likewise a PIS NRO Bank Account has to be necessarily be attached to one SB NRO Bank Account