Simply speaking
1.3 should be okay if your going for a manual tranny car. And it shares better resale due to our mentality of it having a whole lot better fuel economy.
1.5 on the other hand gives you more pleasure driving and in case of auto transmission you would love your decision for an automatic transmission.
Now 1.3 being 1349 cc tax on both models is same so for a added 50k 1500cc is a better buy in the long run .
No lag on AC no engine load while driving with AC. And in my opinion 1.5 will have better resale as well in the long run