Requesting a fern id.: 2 high res. images.
IISER campus adjoining Agasthyamalai biosphere reserve, Thiruvananthapuram.
Fern clumped up with strap shaped leaves, seen growing near rock crevices.

Any chance Pyrrosia

Sorry – an immature sterile plant – could be anything.  Try to find a large fertile plant. It may turn out to be Microsorum punctatum when better grown, or Asplenium phyllitidis – but at this stage there is nothing useful to see that identies it.