The Centre will sell a base tranche of 2 per cent, or about 385.1 million shares, with an option to offload an additional 1 per cent, or 192.5 million shares, through a green shoe optionThe Centre will sell a base tranche of 2 per cent, or about 385.1 million shares, with an option to offload an additional 1 per cent, or 192.5 million shares, through a green shoe option Latest News [ SOBAN NEWS: International and National ]