Maulana Ali Mian was a prolific writer and has written more than 100 books Primarily in Urdu and Arabic. Most of his books has been translated in English, French, Turkish, Malayalam and some other languages.
Some of his English, Urdu and Arabic Books are available on these links.
Malayalam Books Link
I have not seen soft copy/ download link of any of his book in Malayalam. But the Printed copy of many of his book is available at Nominal Price from (If you know any please write in comment)
Mufakkirul Islam Foundation
Bambino Market,Court Road (Near S.M.Street)
Here is a partial List of his books.
1.Tareekh-e-Dawat-o-Azeemat, (Vol 1 -5)
English Translation is with the name of Saviors of Islamic sprit A masterpiece book on History of Islam with a Muslim Perspective.
Here is the download Link http://islamicbookslibrary.wordpress.com/2012/10/18/saviours-of-islamic-spirit-by-shaykh-syed-abul-hasan-ali-nadvi-r-a/
3. Islaimiat Aur Maghribiat ki Kashmakash,
4.Insaani Duniya par Musalmaanon ke urooj-o-zawal ka Asar,
( English Translation with the name of Islam and the world.)
Mazahab-o-Tamaddun and Musalmaan aur
Stories of the Prophets
Life of Caliph Ali
The Four Pillars in Islam
Islamic Concept of Prophethood
Western Civilization- Islam and Muslims
Glory of Iqbal
Islam and the world
Maulana Ilyas aur unki deeni Dawat
(English Translation with Name of Life and Mission of Maulana Muhammad Ilyas)
Muslims in India
Faith versus Materialism
Qadianism (A critical study)
From the depth of heart in America
Islam and Civilization
Dastoor e Hayat
(A Guidebook for Muslims)
The Pathway to Madina
Appreciation and Interpretation of Religion in the Modern Age