Hi Koushik, Most of the post gets approved in less than 48 hours, unless your post are not matching the quality standards of Tripoto in which case it gets rejected or you post more than 4-5 post in a day.
Thanks Tanisha, however what I am seeing is sometimes with only one post also it is waiting for approval for more than 3-4 days. For example, there is one post waiting for approval since last 4 days. Here is the link