^
But it was shown that netra's alliance came first n they faked her kundali to show that she possess all the 5 elements required to keep viraj safe..
Rajguru now only checked sitara's kundali n found out about the 5 elements... N ofcourse netra is a princess n rajahukum has already given word to her parents n even their engagement is done... Now they can't back out due to the 'aan baan shaan of the haveli' ... Also sitara is the daughter of their servant/senapathi
... Obviously the raajparivaar won't think twice about making her viraj's bodyguard instead of wife