I hope you are doing good. Now Coming to your query, Any JNTU is good compared to most private colleges. But according to JNTUK ranking which is based on last year's seat allotment and cutoff rank JNTU Pulivendula is good compared to Jntu Kalikiri. JNTU pulivendula ranking is 26. But don't choose based on their ranking try to know about both of them then which environment suits you based on that take decision.
All the best.