Thanks for clarifying.
About Zerodha,
i believe most of the comparisons with “competitors”
and the “Why don’t you do this…” questions that we see being posed to Zerodha/Nithin,
are making an assumption that Zerodha wants to be the largest (or wants to grow further),
and wants to cater to every whim of the fickle-minded public to retain/grow its market-share.
From what Nithin has mentioned several times in many public forums, that is NOT the goal. 
IMHO, not really.
That (Nokia), was admittedly oversight (in hindsight).
This (Zerodha), apparently is by choice.