The cave which was hit by the 'mother of all bombs' had an approximated 800 fighters of the Islamic State. However an official statistic from the US states that around 36 IS fighters were killed in the bombing at Nangarhar province in Afghanistan on Thursday.
The key point to be noted is that there were several Pakistanis at the site of the bombing. It has also come to light that many of them were stooges or agents of the Inter-Services Intelligence. This only proves that the ISI had a hand in setting up the IS base in Nangarhar.
The IS has its only base in Afghanistan at Nangarhar and attempts to expand the same have failed. The IS at first battled the Taliban, but then the ISI stepped in and struck a truce between the two. Today, both the groups have respected each others' territories and at times even work together.
Indian officials say that it was through the ISI's contacts that the youth from Kerala were lured into the IS. It may be recalled that Indian Intelligence Bureau officials said that the ISI would use the Islamic State to launch attacks on India. This would give them the deniability factor as when an outfit such as the Lashkar-e-Tayiba strikes in India, the blame always goes to Pakistan.