Image cache present in which config file I am new to drupal and was learning about image cache.So far its going good but I want to know where exactly the image cache config is getting saved.I mean to ask which file I have to browse to see image cache setting?If my doubt is silly then please forgive me.Thanks
Image cache is core in Drupal 7 IIRC. So you can access its config and settings via /admin/config/media/image-styles. The cached images themselves are saved in your theme/files dir as defined in /admin/config/media/file-system.