Senior will explain 1 share strategy work here as I know No of share holders is 55488 against I assumed retail quote is 15% of total buyback size that's come roughly 154000.
Retail Quota 15% - 1,54,332 shares Total Retail shares (with share holders less than 2 lakhs) as on March 31st - 51,460 shares. (check BSE website - updated every Q) Max. shares per retail share holder: 2 Lakhs / Price = 82 approx. If we consider average no. of shares per retail share holder (excluding 1 share category), would be say 40 shares, and ER around 20 % (assuming), total shares accepted first per retail share holder will be = (40)*20% = 8 shares. so, 8*51,460/40 = 10292 remaining shares will be available for allotment to single share holders.