He  Sekar the first image is a female Harpacticoid copepod, maybe belonging to Canthocamptidae family. The second image is an Isopod maybe genus Munna

Here an identification key

http://tolweb.org/notes/?note_id=4182

Thanks Daniele Ventura

your specimens are quite damaged but the isopod looks to me more like belonging to the family Janiridae see http://www.crustacea.net/crustace/isopoda/www/janirid.htm

or Asellidae see http://bugguide.net/node/view/167234/bgpage

(I worked in freshwater caves which had undescribed species of janirid isopods)