NEW DELHI, Nov. 2 (Xinhua) -- Indian Border Security Force (BSF) troopers were put on high alert Sunday evening along the India- Pakistan international border after a massive blast left over 45 people dead and over 70 others injured at Wagah border check point in Pakistan, said local media. The Indo-Asian News Service quoted BSF officials at Attari border next to Wagah in Punjab as saying the blast, triggered by an alleged suicide bomber, was heard at a distance of nearly two km. The blast, according to information obtained by the BSF, occurred close to the place where the retreat...