NEW : Indian official : Terrorists , people in Pakistan army , carried out ambush . Pakistan denies having a part in the attack . The two neighbors have had a cease - fire along the de facto border . India says Pakistan has broken that three times between February and July .
NEW : Indian official : Terrorists , people in Pakistan army uniforms carried out ambush . Pakistan denies playing a part in the attack . The two neighbors have had a cease-fire along the de facto border . India says Pakistan has violated that 33 times between February and July .