Hi Neeraj-

You can accomplish this by using a liquid conditional statement with javascript (for the redirects) inside of it. For example, you could include this in the landing page:

{% if request.current_signup.tags contains 'role1' %}

<script>

window.location.href = 'http://www.yourdomain.com/user1';

</script>

{% elsif  request.current_signup.tags contains 'role2'%}

<script>

window.location.href = 'http://www.yourdomain.com/user2';

</script>

{% else %}

<script>

window.location.href = 'http://www.yourdomain.com/neitheruser';

</script> 

{% endif %}

It is also worth noting that you can use the same type of liquid conditional statements to configure a single page to look differently depending on what tags a user has. So rather than using redirects, you could just make your homepage display completely different content depending on which role the logged-in user has been tagged with.