Well obviously due to vested business interests. He has (personal not nation) business interests, hidden properties, and secret dealings in case he has to run off in exile with a lot of countries which is why there is no foreign ministry.
You have a PM whose factories probably has more Indian employees than Pakistani.
A PM that runs out of country on basic medical check ups ending up buying suits and watches with that excuse while people in own country often sleep hungry.
He says he needs heart surgery due to a blockage in his arteries but a few days before enjoys a nice burger and you guessed it right, in UK because obv he wouldn't want to eat donkey meat in Pakistan.
He and his brother have made more promises this month than number of meals you have had about progression, same promises that were also made in the previous 2 terms.
Our neighbors make a scene of catching a pigeon spying on them but he cant open his mouth after having a real spy caught.
The question you asked is wrong. What you should be asking, how come such a terrible person keeps coming back? Do people really love to be so miserable that this is the only choice they always have? If so, well deserved in my opinion.
Irony is that Indians are more worried about his well being than Pakistanis.