Buyback size - 10500 Cr
Buyback number of shares - 323076923
Individual share capital upto Rs. 2 Lacs (shares) - 113978744 (I am guessing that this is calculated based on face value. Please correct)
Individual share capital upto Rs. 2 Lacs (shareholder count) - 319743
Individual share capital upto Rs. 2 Lacs (average sh holding) - 356
Buyback from retail - 48461538
Worst case scenario -
Acceptance - 42.5% (48461538/323076923)
But I feel that the base we are considering here is much bigger and the acceptance ratio will be higher.
March 2019 Shareholding: https://www.bseindia.com/corporates/shpPublicShareholder.aspx?scripcd=507685&qtrid=101.00&QtrName=March%202019