An Army Major, who was injured in the terror strike in Kabul, died at a hospital in New Delhi on Wednesday, taking to seven the number of Indians killed in the attack.Major Ritesh Roy of the Army Education Corps died in the Army Hospital Research and Referral. Two other Major-rank army officers have also been killed in the attack.Commissioned in the Army in 2001, Major Roy had been posted in Kabul since March last year. His wife Captain Seema Mishra is also an AEC officer.