He have time to prove at 2019 we will have all kinds of data in hand, last 1 year he passed policies of UPA and generated revenues too let haters criticized them if he having vision then he will also succeed. Modi have a challenge not only to run successful Govt. but his Party also. Otherwise we might see BJP Vs. BJP at 2019 because currently only 3 peoples running everything.
He requires all gaps to be fill otherwise he have to say after General Election, "Hume Apno Ne Mara, Gairo Me Kahan Dum Tha, Humari Kashti Wahan Dubi, Jahan Paani Kam Tha".