Hi @DVerma_a , yes it is entirely possible for you to receive a full-ride scholarship for either US or UK. There are several entities which offers these scholarships including the government, different universities or organizations. The given below link will give you a fair idea about different full-ride scholarships in different countries including UK or the USA
And here is the detailed version of what steps you should follow in order to get a scholarship. Redirect yourself to the detailed query link given below: