Punjab, Sept. 15 -- The NSE's anchor book opens today, a day before the Rs 22,561.57 crore issue opens to the public on Thursday. Here are the mechanics, in one place.

The numbers

The reservation split is 50% for qualified institutional buyers excluding anchors, 15% for non-institutional investors and 35% for retail.

Two details worth pausing on

The first is that the NSE has no identifiable promoter. Its shareholding sits entirely with "others" before and after the issue. That removes the usual post-listing question of promoter lock-in and dilution, and replaces it with a different one: there is no controlling shareholder whose incentives you can read.

The second is that India's largest exchange is listing on the other one. That is not...