I applied online.

Recruiter called me and asked some general questions related to work experience, tech stacks etc. Later they asked about remuneration drawn from the current org, to which I responded saying "need to check with HR regarding any NDA if they have pertaining to salary disclosure". I also felt current remuneration being irrelevant question for next role and asked what's the comp. band that this role is entitled to. To which recruiter told without current comp. info, they won't be able to proceed further and rejected on spot.

Familiarity with tech stack, work experience, and salary.