Former Chief Minister Omar Abdullah on Saturday expressed his displeasure over a Kashmiri student in Noida allegedly joining militancy and called the incident as "hugely worrying".Abdullah's remarks come after a picture showing the student wielding a rifle and claiming allegiance to the IS appeared on the social media on Friday."If this is genuine, it's hugely worrying. Sometimes seemingly small actions have huge consequences," he tweeted.Ehtesham, a student of Sharda University in Greater Noida, disappeared after he was assaulted during a scuffle between Indian and Afghan students inside the campus on October 4.In another tweet, Abdullah said: "If what happened to him at Sharda University has led him to choose such a destructive path, it's even more tragic. One more life on the path to ruin and one more family in turmoil."