Success rate very low. Please note the following point "As per prevailing practice since 2012, if difference of marks after revaluation and first valuation is more than or equal to 15% of maximum external marks then revaluation marks will be retained. If the change is less than 15% or marks secured in revaluation is less than first valuation marks, the first valuation marks shall be retained."
After RV if marks get increased by 11 or 12 marks then the previous marks/first valuation then only JNTUH will consider change in the marks , if not you will simply get "NO CHANGE" after RV Results are published. Hope you got it.
If the amount of Rs.1000/- is ok for you then you can go for RV.
