The letter appended to “pdf” is a common shorthand in South Asian (particularly Urdu-speaking) digital searches. It stands for:
Kitab al-Milal wa al-Nihal (The Book of Sects and Creeds) is a foundational work in Islamic literature that examines religious and philosophical groups. There are two primary works with this or a very similar title, both of which are available in PDF format via academic and public archives. 1. Al-Shahrastani’s Al-Milal wa al-Nihal kitab al milal wa al nihal pdf d