Honda SP160 price in Rajahmundry

Since you're shopping in the 150/160cc segment and want flashy looks, good features and decent mileage too, here are all the options you should consider. The TVS Apache RTR 160 4V is a smooth, comfortable yet decently sporty machine. Also, since you mentioned that you want a more manageable machine, we'll stick with options that have a low seat and are lightweight. In a similar vein, you can also consider the Bajaj Pulsar N160 and Honda SP160, too. 

If you can extend your budget, bikes like the KTM 160 Duke and Yamaha MT-15 will also fit the bill because they have punchy performance, yet return good fuel efficiency and are lightweight and manageable too. 

All the options you have shortlisted are decently good city bikes, and since your priority seems to be pillion comfort for your partner, sticking with bikes like the Honda CB350, Honda SP160 and Royal Enfield Hunter 350 would be our recommendation. 

Coming to the matter of taking your newborn child on the motorcycle, purely from a safety standpoint, we would advise you to wait until they grow up and can sit on a motorcycle unassisted and can wear a helmet comfortably.  

A good upgrade without sacrificing mileage from your 100cc Platina would be something in the 150-160cc space, like the Bajaj Pulsar N160, TVS Apache RTR 160 4V, Suzuki Gixxer, Honda Unicorn/SP160, or the Yamaha FZ lineup. If you want to go beyond that, the TVS Apache RTR 200 4V, Honda Hornet 2.0 or Bajaj Pulsar NS200 will fit the bill. Take a long test ride to see which option suits you best. 

Since you have mentioned you want a bike that looks sporty but is comfortable to ride, something in the 150-160cc sporty commuter space like the Bajaj Pulsar N160, TVS Apache RTR 160 4V, Honda SP160, or Hero Xtreme 160R 4V will serve you well. If you want something that is packed with more performance but is still usable and comfortable inside the city, the KTM 160 Duke and Yamaha MT-15 are options you should consider. 

We would also recommend the Royal Enfield Hunter 350 because it is a comfortable, approachable and reliable machine, although it doesn't have the sporty look you want. 

A 150-160cc sporty commuter like the Bajaj Pulsar N160 or TVS Apache RTR 160 4V would be an ideal step up and will fit the bill for your sort of usage. If you want something more traditional, then the Honda Unicorn / SP160 would be our recommendation.