How to create dynamic tabs on a form...

What do you mean by dynamic tabs? Would you mind sharing more details on this question, please?

In one screen, user is able to select multiple records for editing (Paging grid is used here)...after that the user will get a screen where he would be editing those records.. At a time the user wants to see only 10 records for editing, so in one tab we will have max 10 records...let say if user selects 55 records, then he will have 6 tabs.

to achieve this, I want to generate tab dynamically.

I don't think the concept of dynamic tabs in this context is available, why don't you use the normal paging feature of the paging grid?