I have to open my android application, when user clicks on a link that has my domain name. For example, lets say my domain is abc.com and i have posted this link on my Faceb
You can achieve this by using URI schemes (link e.g. myscheme://open/chat), add into your manifest this filter into e.g. main activity section (set your scheme name):
In your activity where you've set filter, you can get URI by calling this (in onCreate):