This is not the first time that China has stood by Pakistan even though lots of evidence were presented by India about Lakhvi's involvement.  India should never expect any action by China which is going to go against Pakistan irrespective of the topic of discussion or dispute.  One should not ignore the fact that China has lot at stake to fulfill its long term objective and that is to create a hegemonic state in that part of the world.  Some of its actions in Pakistan provide a very vivid signal towards this objective and they are; its investment in Pakistan's Balochistan port, its ongoing military involvement in the POK area, propagating teaching Chinese languages in Pakistan and investment in the Silk Road Project to name a few.  Talking to China about any topic about Pakistan is a waste of time and energy.  It is just like talking to Pakistan about solving a Kashmir issue - futile exercise.  Needless to say, China has been occupying thousands and thousands of miles Indian territory since 1962.  In addition, they are further claiming that Arunachal Pradesh as part of China.  They have already swallowed Tibet.  They are the known occupier.  No one at the international forums even talks about it.  Why not?  Shouldn't India raise this question consistently at the UN?    It is good to keep the political and diplomatic dialogues open, but India must keep in mind that China is not India's friend.  To beat China, India needs to be strong militarily and economically.  There is no other way to overcome this situation.  Indian leaders at the center have to be very vigilant and pro-active about Chinese chess moves.