After installing Khulasa Tun Nahw | خلاصۃ النحو mobile application you can read Arabic Grammar in Urdu which is also called Nahw Ki Kitab (نحو کی کتاب) with many useful features.

About Nahw:
Nahw or Ilme Nahw is like salt in food for arrangement, structure and beauty of Arabic sentences. Nahw is very important in Arabic grammar, after learning it, a person becomes able to arrange sentences in a correct way.