New Delhi, Jan 06 (ANI): Chief of integrated Defence Staff Air Marshal PP Reddy said that India faced security challenges from its immediate neighbourhood. Air Marshal Reddy said India has to be prepared for war on both Chinese and Pakistani fronts. He said India needed to be prepared for complete spectrum of conflicts like militant attacks, sub-conventional conflict, intense conventional war and nuclear war. Reddy also blamed China for assisting other countries against India. Meanwhile, security expert Qamar Agha said India should mobilise international community as the Chinese were trying to establish their supremacy in the Indian Ocean, which is a matter of concern for the whole world. Another Security Expert RK Arora said China is technologically ahead of India in terms of weapons and defence industrial base wise.