If there is such a large population of Urdu speakers, you might wonder why there are so few typefaces for this population. One reason is that technology companies have not seen Urdu-speaking communities as important markets and have not invested resources to develop Nasta’liq typefaces.
Let’s go back in history and review some features of the Urdu language, the Nasta'liq script, and technological problems to find some more reasons.
To a great extent, the Urdu language is similar to Hindi. Speakers of both languages can understand each other. Yet the writing systems used for each language are very different. Hindi is written from left to right in the Devanagari writing system , while Urdu is written from right to left in the Nasta'liq style of the Arabic writing system. When calligraphers used to write Nasta’liq by hand, they traditionally used a reed pen.