Investment will be confined to ETFs on NSE and BSE and will be managed by fund managers of asset management companies (AMSs). Equity investments will be monitored by existing custodian, external concurrent auditor and consultants looking after the debt investments, it said.Investment will be confined to ETFs on NSE and BSE and will be managed by fund managers of asset management companies (AMSs). Equity investments will be monitored by existing custodian, external concurrent auditor and consultants looking after the debt investments, it said.