Chinese involvement in building these tunnels in the POK area is just one of the routes which is going to be used by China when, not if, there is going to be a war between India on one side and Pakistan along with China on the other side.  The development work in the Gwadar port in the Balochistan area is in progress for the Chinese navy which is going to be another facility to be utilized for the same purpose.  True, there are economic and commercial reasons also for the Chinese to develop this port to have an easy access from the gulf and the Central Asian Region, but the utmost purpose is being the security for Pakistan and territorial expansion for China.  One should know that Pakistan has arranged a special force of thousands of military personnel to provide protection to the Chinese engineers and labor force on the Gwadar project, and Chinese language is being taught in Pakistani schools also.  Chinese are not doing it out of a sheer love for Muslims in Pakistan.  Chinese have a long term territorial ambition, and the investment Chinese are making in these different project is paving the way to fulfill that long term objective.  Yes, Prime Minister Modi highlighted these concerns to the Chinese, but one wonders if they really listened to what Indian Prime Minister stated.  I do not think so.  The long term planning of China is to encircle India and obstruct its economic development in Asia.  India needs to be proactive of Chinese chess moves and prepare itself for a dual confrontation - India against combination of Pakistan and China.