The Kawasaki Ninja 500 is a great sportsbike at a very steep price, just like its predecessor, the Ninja 400. If you can stretch for the Ninja, it is a capable, refined, comfortable and reliable machine which will serve you well. Do bear in mind that Kawasaki spares and service have a reputation for being on the pricey side and that the company's dealer network is quite small across the country. 

The Aprilia RS 457 is a truly great sportsbike, but because of its focused nature, it won't be the best fit on broken city roads. Another aspect to consider is that the 457cc engine has been reported to have multiple reliability issues that keep recurring. So, we would recommend you not go with the RS.

The Honda CBR500R is not sold in India, so it shouldn't factor into your decision. 

The Kawasaki Ninja 300 is a machine that thoroughly feels its age today, but remains a unique offering in the class with its twin-cylinder engine. The single-cylinder TVS Apache RR 310 will feel quite dull to ride in comparison to these twin-cylinder machines. But it is also much more affordable and easier to maintain. 

Take a test ride to decide which bike is better for you.