If you want a standard street bike, then in your price range, you can get machines like the Honda CB300F, Bajaj Pulsar N250, TVS Apache RTR 200 4V, Royal Enfield Hunter 350, and Yamaha XSR155. Depending on the look and comfort each bike offers you, you can pick and choose between them – all are proven, reliable machines from reputable makes, so you should be good in the long run, by and large.
In the adventure bike class, the new TVS Apache RTX 300 and Hero Xpulse 210 make for good options to look at, and these two will be more comfortable and spacious than the roadsters suggested above, although if you are a shorter rider, their tall seats might not be ideal for you.
Take a test ride of these bikes to see which one suits you best before making a decision.