Yaar there will be difference of only one kmpl in case of both variant. Engine remains the same. Manual will give you more power in 1st gear though. Driving pleasure matters a lot. It's totally upto you, if you want your life to be on a comfort side than go for cvt, an if you want your life to be on sporty side all the time than go for manual. This is my first auto car ever and I'm loving it
PS: cvt is also sportier.