Birjand ( , also
Romanized as
Birjand and
Birdjand) is the east Iranian provincial capital of
South Khorasan and the centre of the county Birjand resp. Quhestan, known for its
saffron,
barberry, rug and handmade
carpet exports. The city of Birjand had a population of 157,848 people at the time of the last official census in 2006.