Hadhrat Maulana Muhammad Ilyas Sahab (rahmatullah alayh) says in one of his Malfoozat:
“The reality of Du’a is to adduce your necessities in the high royalty court (of Allah Ta’ala), therefore as high the royalty court is as much one should concentrate the heart at the time of supplicating. And one should make Du’a with certainty (یقین) and ??? (ازعان), that it will certainly be accepted because the one who’s asked is very generous and gracious, he’s merciful to his servants and all the treasures of the earth and heaven are in His control.”
The way of supplicating: The supplicating indivdual should sit in the state of purity (with Wudhu) in the Tashahhud position facing the Qiblah. One shouldn’t sit cross-legged because this is very mannerless, under special circumstances it’s allowed. With Allah Ta’ala’s dignity (عظمت) and might (قدرت) in mind one should make Du’a. One should raise the hands to supplicate and start before anything else with sending blessings and peace upon our Prophet (Sallallahu Alayhi Wasallam) (Durood Shareef), because it comes in a Hadith Shareef, that the supplication without Durood Shareef will stay between the earth and heaven and will not be accepted. After that as many good words of Allah Ta’ala’s praises (تعریف) and lauds (تعریف) as one can say should be said. Then from the Asma-e-Azam and Asma-e-Husna, about which is said in authentic Ahadith that after reciting them anything supplicated for will not be denied, one two or more should be recited and then one can start making his Du’a. Adduce your necessities to the judge of judges, the all-mercifull being, let your supplication be accepted through excessive weeping and humble begging and at the end of your Du’a after having asked for everything conclude it with Durood Shareef.
Making Du’a on behalf of Hazoor Aqdas Janab-e-Muhammad (Sallallahu Alayhi Wasallam) is the most excellent of all and supplicating on behalf of him is much closer to being accepted. One person always said:
“Fazzahil ya Ilahi kulla s’abin – Bi hurmati sayyidil Abrare zahil.”
“Oh Allah! Remove all my problems and pain through the means of Sayyidil Abrar (viz., Muhamad Sallallahu Alayhi Wasallam).”
As far as the acceptance of Du’a goes does the time and place play quite a big role, for example the day of Arafat, from the monthes the month of Ramadhan, in the week the day of Jumu’ah and from the night the time of Sehr (before Fajr).
After completing one’s Du’a one should glide with both hands over the face and have complete certainty, that the Du’a will be accepted, and if signs of acceptance don’t show up, then one shouldn’t become worried or anxious, but should supplicate again and have the thought that the Du’a not being accepted brings something better and in the hereafter there’ll be much reward and merits for it.
[translated from the booklet “Masnoon Du’ain” by Maulana Muhammad Ashiq Ilahi Sahab]