Dua e Jamela is very beneficial prayer. It is stated that all the sins of the reciter of this Dua are forgiven by Allah Almighty no matter how large are they in amount.
A few bleesings of this Dua is given below
a... The one who recites it after Salaatul Maghrib receives a reward as though he performed Hajj seven hundred (700) times with the same barakah [blessings] of Hazrat Yunus Alaihi Salaam. Who ever recites it after Salaat ul 'Ishaa receives a reward equivalent to one thousand (1000) Hajj as that performed by Hazrat Musa Kaleemullah Alaihi Salaam.
b....The one who recites it after Tahajjud it is as though he has performed one hundred thousand (100.000) Hajj receiving the barakah of the Hajj as performed By Sayyidina Rasuli Akram Sall Allahu alaihi wa Aalihi wa Sallim.
Other than above benifts many more are also described in Islamic books. This is a gift for every Muslim Its Free Download it and keep it in your device.