Hi
I want 2 buy a new bike.
which is best among apache RTR 160,pulsar 150 or any other good bike
I am interested in buying apache.
how wil be it's performance and mileage

Apache 160 is surely better than pulsar 160 in terms of acceleration and performance.

On the other side Pulsar is all time favourite.. I suggest you to for Apache RTR 160 as its good as well not so common as pulsar.

buy rtr 160 as it comes with additional features like rear disk brakes.

But he seems asking for advice on which new bike to buy but not about how to learn riding motorbike .