From my quick reading:
On the export contract side the investors update on 21/9 talked about CESC 1 mtpa (first three years), and Bhushan Steel 0.5 mtpa with mutual option to increase.
Need to lock in 6 mtpa for 'bankability of cash flow'
Ultimately it looks like they want infrastructure to ship 46mt, but looks like it will be at least a three year ramp up.