What is the length of Durand line?

What is the length of Durand line?

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Explanation

The Durand Line is the 2,611-kilometer (1,622-mile) border between Afghanistan and Pakistan

The common border between Pakistan and Afghanistan is called Durand Line

British signed the Treaty of Durand line with Abur Rehman Khan

The agreement was signed on November 12, 1893, in Kabul, Afghanistan.

The agreement was signed between Sir Mortimer Durand, the Indian Foreign Secretary at the time, and Amir Abdur Rahman Khan in Kabul.

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According to Survey of Pakistan 2020, the border between Pakistan and Afghanistan is 2611 km.

check here: www.surveyofpakistan.gov.pk

We often heard Durand Line length is 2252 KM. But at most of the places, we read 2430 KM.

but right answer is 2611