Jignesh Vora, the main essence of this site is article section and those who are submitting the resources are suppose to follow the posting guidelines and the editors will ensure full checking of the articles thus submitted for various parameters and then approve the resources. So it will at least take 48 hours to 72 hours for the regular member articles and it may further take time for the new members articles as they are bound to make mistakes, may fail to follow the posting guidelines etc. However this is not the hard an fast rule. If the article is impressive and has all the ingredients, then approval would also be quick. Since you have raised this question, please note that a impressive article should contain a good title, a nice summary, a very good detailed body content with images and illustrations and finally the observation of the author on the subject matter. If such own resources are created and submitted, it may get fast approval.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease