Lepisorus scolopendrium (Ching) Mehra & Bir, Res. Bull. Punjab Univ., New Ser., Sci. 15: 168 (1964) (syn: Lepisorus excavatus var. himalayensis Bir & TrikhaLepisorus excavatus var. mortonianus Bir & TrikhaLepisorus himalayensis (Bir & Trikha) Khullar & PangteyLepisorus kumaonensis Kholia, Bhakuni, R.Punetha & BankotiLepisorus mortonianus (Bir & Trikha) KhullarLepisorus scolopendrium var. himalayensis (Bir & Trikha) Pangtey & PunethaLepisorus virescens Ching & S.K.WuPleopeltis excavata var. himalayensis (Bir & Trikha) BenlPleopeltis excavata var. mortonianus (Bir & Trikha) BenlPleopeltis himalayensis (Bir & Trikha) Á.Löve & D.LövePleopeltis mortonianus (Bir & Trikha) Á.Löve & D.LöveLepisorus excavatus var. scolopendrium ChingPleopeltis scolopendrium (Ching) Alston & BonnerPolypodium scolopendrium Buch.-Ham. ex D.Don );
Himalaya to S. China and Indo-China: Assam, China South-Central, East Himalaya, Hainan, Laos, Myanmar, Nepal, Thailand, Tibet, West Himalaya as per POWO;

Is it a Fern, Uttarakhand (180609SCS1) – indiantreepix | Google Groups:

I came across just one specimen during my week-long trip.
Badrinath, Uttarakhand, June 09.
Looks like a fern species ?

I think this is pteridophyte Pleopeltis

Pteridophyte pleopeltis shown at flickr.com/photos/alan_cressler/2253529292/ is quite different from the one I had posted.

The pteridophytes are vascular plants (plants with xylem and phloem) that neither flower nor produce seeds, hence they are called vascular cryptogams. Instead, they reproduce and disperse only via spores as per link: http://en.wikipedia.org/wiki/Pteridophyte
While Pleopeltis is the genus, which includes many species, including Pleopeltis polypodioides as stated in your link, as per link: http://en.wikipedia.org/wiki/Pleopeltis

Did you take a close-up pix of the yellow spots on the rocks in the background in both the pix. Appears to be rust/fungus. ID anyone.

Yes! It is Lepisorus scolopendrium, Polypodiaceae, very common throughout the Indo Himalaya.
You can just see the round raised spots above and towards the tips of the fronds, where the young sori are just beginning to develop on the underside.