You are correct. The original work in Urdu was not written by any scholar who graduated from any islamic madarsa. English translation was done by Dr Haq ( MS, eye surgeon). But to say that this rumour which is spread ( that ala hazrat studied with maulci ashraf ali thanvi) should not be refuted, is not correct. 'O believers! If any disobedient comes to you with any news make a strict inquiry lest you may hurt any people improperly then remain repenting on what you have done. ( 49: 6) Hence this distortion in historical fact needed to be refuted. Some times great historical lie causes deep confusuion among muslim. For example : Shaykh Rashid Gangohi, who is called ‘Imam e Rabbani” by the Deobandis, said “ Guru Nanak was the “Khalifah ”[student] of Fariduddeen ganj shakar[ rh] . Since he used to be in the state of ecstasy, muslims did not pay attention to him “ [ Tazkiratur Rashid ] This is such a big lie that any lay person can check and see the truth. Baba Fariduddeen Ganj Sahakr [ Radi Allahu taa’la] was born in 1175 CE and died in 1263 CE. Guru Nank , the founder of Sikh religion was born in 1469 CE and died in 1539 CE. There can not be any meeting between these two person ! But the deobandis are so full with love for their “imam e rabbani’ that , they accept this lie to be a fact and still publish that lie in their book ! It can be read here: http://www.falaah.co.uk/refutation/wahabi/111-fazle-rasul-badayuni-and-deobandi-methodology-.html
Many Deobandis think that Imam Ahmed Raza Khan [Rh] and Maulvi Ashraf Ali Thanvi studied together in madarsa. To know the truth behind this false propogation, please download the book " AN OPEN SECRET" from this link: http://www.falaah.co.uk/books/info-about-books/182-imam-ahmed-raza-and-maulvi-ashraf-ali-thanvi.html