Commodities Sovereign gold bonds 2020: Subscribers can avail of tax benefits. Should you buy? Updated : January 14, 2020 03:44 PM IST HDFC Securities said investors must see SGBs more as a tool to diversify assets rather than an instrument to earn superior returns. Online subscribers can secure these bonds at a discount of Rs 50 per gram. The subscription window for the latest tranche of sovereign gold bonds (SGBs) will close on January 17. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.