Yes, please tell us where this insect is from!

Sir, habitat is grassland, collection month is August/ September, Climate is temperate, Place is Himachal Pradesh, India.

I think Hiren may be correct, Hylephila.  This photo link  appears to be a close match.

http://www.naba.org/chapters/nabambc/frames-1species.asp?sp=Hylephila-phyleus

I see some papers about butterflies of India may be available.  This author can be contacted, the abstract lists 5 Hesperidae (from Pradesh).

http://www.academia.edu/4151631/DIVERSITY_AND_HABITAT_ASSOCIATION_OF_BUTTERFLY_SPECIES_IN_FOOTHILLS_OF_ITANAGAR_ARUNACHAL_PRADESH_INDIA

 This author's paper can be downloaded, lists 19 Hesperiidae from Western Ghats.

http://www.academia.edu/4793056/Butterflies_of_northern_Western_Ghats_a_compilation_of_checklists

This is difficult; species checklists from Indai don't seem to list Hylephila often.  

This links to a paper that creates a molecular phylogeny (I can't access it as I'm on a train).

http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3113.2008.00463.x/abstract

Hope this helps.  Time to catch a bus now...

Nice suggestion Simon.

 http://sgbug.blogspot.com/2009/07/telicota-colon-stinga-pale-palm-dart.html

This link has a nice drawing and notes key features in identifying Telicota species; note the key features involve a view of the top of the wing.   I think a top view photo might help.  

Brower dealt with Hesperiidae nicely in the link below.  Note that both Telicota and Hylephila feed on grasses and though they look similar, they seem to be quite diverged phylogenetically.  I can't find a 'key features' guide like I linked to for Telicota to address Hylephila that would allow us to compare them.  

On the Classification of the Hesperiidae by Edward G. Voss may do it but I don't have access (Annals of the Entomological Society of America 1952 45.2.246-258). 

http://onlinelibrary.wiley.com/enhanced/doi/10.1111/j.1365-3113.2008.00463.x/

One feature that seems to favor your Telicota call may be the antennae; Hylephila tend to have short antennae and I don't see such a pronounced hook at the tip. 

Skipper from Himachal Pradesh, India

The first suggestion, Hylephila, is not possible, as all Hylephila species are restricted to the Americas.

Identifying Hesperiinae of this general facies, from a slightly out of focus photograph of the ‘resting’ underside only, is always going to be, at best, tentative. The upperside offers important characters – not only wing pattern, but also (in males) very often the androconia. This is pretty clearly a member of the Taractrocera group, which includes Taractrocera, Telicota, Oriens, Potanthus and Cephrenes. Various species of these genera can only be told apart reliably by dissection of the male genitalia (maybe soon by DNA). Neither of these character sets can be assessed from a photograph!

Telicota is the second suggestion. However, to my eye I get the impression the third segment of the labial palp is long and fine, whereas in Telicota it is short and stout. If so, then the choice would appear to be between Oriens and Potanthus. The latter has the basal section of the forewing subcosta fringed posteriorly with hair scales – perhaps visible in the photograph? – whereas the former genus does not. So Potanthus might be plausible.

According to The Butterflies of India website:

Potanthus spp. – Dart spp.

There are 19 species of Potanthus in India. Their species-level identification is based largely on structures of the male genitalia. Hence, they cannot be identified easily based on external traits such as wing patterns.

http://www.ifoundbutterflies.org/#!/sp/1061/Potanthus-spp

I do not think this can be Taractrocera (the photograph shows an apiculus, which does not occur in this genus), or Cephrenes. There are two species of Telicota in India (http://www.ifoundbutterflies.org/#!/tx/339-Telicota). I do not think the underside hindwing pattern of the Himachal Pradesh specimen matches either. Nor does it correspond to any of the three species of Oriens (http://www.ifoundbutterflies.org/#!/tx/336-Oriens). In contrast, searching the web for Potanthus, whether correctly identified or not, there are images that look very similar to the Himachal Pradesh insect in question.

So, currently, my best guess is Potanthus sp.

 Yes, I agree with you Simon. Good summary.

Still not clear, Sir. but I will try to collect the specimen and take photograph of both sides of wing for identification.

and I am very Thankful to you all for your kind response and discussions.

Saveena it will be better if you have pictures of both male and female with the wings showing both the upperside and underside/lowerside. Also you may provide information on the host or habitat where the specimen was spotted. To me it looks like a Kedestes species-I am limited by the picture and information provided.

regards

Ofentse

Simon 

Thank you for the comment. Is there no possibility of introduction? Or the butterfly is idigenous to India/originates in India?

This is definitely not an African skipper such as Kedestes. There is no doubt in my mind that it is a member of the Asian Taractrocera group of genera. Many Hesperiinae are indeed superficially similar in appearance, but the original photograph is clear enough to be sure this is an Asian, not an African or American skipper species.

Sithole Sir,

 I found this species from grassland and host plant is also grass (as same in the picture). As far as concerned about adult, I will try to collect that also. and thank you very much Sir.

 Yes. This is a Potanthus sp.

And 17 sp. of the genus Potanthus are mentioned by Paul Van Guess found in India and we have recorded more than 5 sp. in Bangladesh. All sp. are hard to identify by their underside only and quite impossible mostly. Because for most of the Potanthus sp., Experts suggest to check the male genetalia.

Is Potanthus confucius angustatus. Your specimen is out of focus so It looks strange. There is a better photo in the following link

https://www.flickr.com/photos/95930640@N05/16068904192/

just concern with Dr Avtar from ZSI Solan Himachal Pradesh India

My best "guess" is Potanthus pava.

Thanks Hideyuki -- totally plausible I think.

 Thank you Sir.