He was also a part of several challenging expeditions, including winter attempts of Nanga Parbat with Italian Alpinist Simone La Terra in 2007–2008.

[citation needed] In 2002, Karim made his first attempt at an 8000er by climbing Broad Peak, which was unsuccessful due to bad weather conditions.

In 2003, he climbed Gasherbrum II in an expedition led by Marin Gogglemann,[11] becoming his first successful attempt at an 8000er mountain.

[14][15] In 2007, he was praised by mountaineer Simone La Terra for the winter ascent of Nanga Parbat,[16][17][18] which was unsuccessful.

[19][20] Hugues D’Aubarede hired Karim to climb K2 in 2006 and 2007, but both expeditions were called off because of harsh weather conditions.