External links are allowed only in forum unless of course, they are not commercial in nature or an advertisement of some kind. No external links are allowed in articles.

I  have the same question== But now the answer is very clear.. Nice for very new member. Good day..

Yes, Link are allowed but note that they should be helpful or legal to use. Use may use signature for the purpose of providing some best and useful content not to spam here. This is great forum and biased by great people and author, so please make some good sound links here.

Thanks to @Jeets and @Kalyani Nandurkar both, one for asking this question and another for answering it so clearly. Every doubt is cleared by this thread. Thanks once again!

Since the doubt has been cleared and the original poster of the thread has not bothered to check in again, the thread can now be locked.