As a native speaker, I have not given as much attention to learning Urdu as to other languages. Some of my suggestions for Hindi speakers can be found in the following post: Cracking Urdu: A Guide for Those Who Know Hindi
For the time being let me mention the Ukindia Learn to Read Urdu Website. I may recommend alternatives when I find resources I like more. In the meanwhile let me know what you have liked in your own efforts. Look at this BBC Guide to Urdu as well. This tutorial is helpful for those familiar with Hindi.
Interesting Articles on Urdu
What is Urdu by Justice Markandey Katju (2011)
Urdu Ghazal and the Indian Mind by Professor Gopi Chand Narang
Urdu in the Pre-Modern Period: Synthesis or Particularism by Professor C.M. Naim
Some Notes on Hindi and Urdu by Professor Ralph Russell
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