Hazrat Syed Abdullah Qadri Baghdadi R.A. was the direct descendent of Hazrat Ghaus-ul-Aazam Muhiduddin Shaikh Abdul Qadir jeelani.
Both his family & spiritual lineage reaches to Hazrat Ghaus-ul-Aazam through 11 generations.
He was the sajjadansheen (spiritual successor) of His father Hazrat Syed Abdul Jaleel Baghdadi R.A.
The faiz which he received from Hazrat Ghaus-ul-Aazam made him a great Buzurg of Qadri Silsila.
He came to India to initiate Hazrat Shah Niyaz R.A. to the Qadri Order. He received the instruction from Hazrat Ghaus-ul-Aazam R.A. in his dreams to go to India and Initiate Hazrat Shah Niyaz in Qadri order and make him his spiritual successor (Khalifa). Similarly Hazat Fakhruddin Fakhre Jahaan (R.A.) in his dream Hazrat Piran-e-Pir Ghaus-ul-Azam (R.A.) has introduced him to a certain person (closely related to him) who would be sent to initiate Hz Niyaz-be-Niyaz (R.A.)as his desciple and Hz.Fakre Paak should have him accepted by the person. After six days Hazrat Fakhr-e-jahaan (R.A.) told one day that Hazrat Ghaus-ul-Aazam (R.A.) has told him that the person has reached Delhi.Hazrat Fakre Paak placed a tray full of sweets on his head and holding the hand of Hazrat Niyaz-be-Niyaz (R.A.) went to Jama Masjid Delhi,where the person (Hazrat Abdullah Baghdadi RA) was staying .Hazrat Fakre Paak recognized Hz Abdullah Baghdadi at once and placed the tray in front of him.Hazrat Niyaz-be-niyaz was accepted by Hz Abdullah Baghdadi (R.A.) as his spiritual disciple in front of huge crowd in the arch of Jama Masjid.
There are two different dates available for his arrival to India. One version says that this was 1185 Hijri (1771-72 AD) and other version says that it was the year 1100 (1777 AD).
Hazrat Shah Abdullah Baghdadi R.A stayed at the Jama Masjid in Delhi.He gained lot of respect and popularity in Delhi. Great Sufis of that time Hazrat Maulana Fakhruddin Fakhre Jahaan R.A., Hazrat Mirza Mazhar Jane Jaanan R.A.,hazrat Zafar Ali Shah Shahabadi R.A.,Hazrat Mir Nanu,Hazrat Fateh Ali payed there respect and homage to Hazrat Shah Abdullah Baghdadi R.A. ,they even carried His palanquin (Paalki) on their shoulders.