Recite 300 times after Isha Prayer
اَلْمَلِکُ الْقُدُّ وْسُ اَلْمَلِکُ الْقُدُّ وْسُ اَلْمَلِکُ الْقُدُّ وْسُ
with 11 times Darood-e-Khizri before and after this recitation
صَلَّ اللّٰہُ تَعَالیٰ عَلیٰ حَبِیبِہٖ مُحَمَّدِ وَّ سَلَّم
and pray to God for the success. This is required to be continued till the result is announced.