Researchers
One page per identity, not per name: researchers who publish under the same name each keep their own page. Where the external sources disagree, one researcher can still end up with more than one.
Matching runs newest-first, so recent work is covered best — 581.6k of 3.1M papers are attached to an identity so far.
“B. Rajesh” – No researchers
That name search took too long.
Searching 563,000 names by substring is slow until the search index is built. This is not a result — your colleague may well be in here. Try again, or try a more distinctive part of the name.