The admissions committee take into account a lot of factors apart from only PGRE scores. GPA, Research experience, Research interest and letters of recommendation.
If you are inclined towards theory then in most cases competition is tougher. It's difficult to suggest which Universities you should apply since you have no research experience but I would say you can aim for Universities ranked above 20 if you feel your recommendations will be really good. Or else you can also apply for Masters degree which some universities offer.
I am also an Indian student and will be applying for fall 2017.