U K Sinha, who became chairman of the Securities and Exchange Board of India (Sebi) in February, has suddenly become quite reclusive. On Wednesday, he skipped a capital market summit organised by industry body CII in Mumbai. His absence inconvenienced the organisers but no one looked surprised. This was not the first time Sinha, who is in the middle of a controversy over corruption allegations against a former member, has missed an event at the last minute and the reason for his absence has been the same: “in Delhi”. The additional interesting point about the CII summit was that, bar one, none of the Sebi officials scheduled to attend turned up.