Q. Which of the following Sufi order was the most orthodox?
Answer: Naqshbandi
Notes: The Naqshbandi order stems from the Silsilah Khwajagan, which originally developed in Turkestan. Naqshabandi silsila gained momentum in the last years of Akbar's reign, with the arrival of its prominent leader, Khwaja Baqi Billah in Delhi from Kabul. Of all the Sufi orders, it was the nearest to orthodoxy and tried to counteract the liberal religious policies of Akbar whom they considered a heretic. It is the only Order in Sufism that claims to trace its spiritual lineage (silsilah) to Prophet Muhammad through Abu Bakr, the first Caliph.