Is it possible to bid for an IPO under ASBA as well as under non-ASBA

No, it isn't. Only one application per IPO is allowed, either through ASBA or non-ASBA. Multiple applications are liable to be rejected because the same PAN Card cannot be used for more than one application.

Is it possible to bid for an IPO under ASBA as well as under non-ASBA

No, it isn't. Only one application per IPO is allowed, either through ASBA or non-ASBA. Multiple applications are liable to be rejected because the same PAN Card cannot be used for more than one application.