Prime Minister Narendra Modi today said India and China have 'reiterated our strong commitment to make all efforts to maintain peace and tranquility in the border region.' 'We have historic responsibility to turn this relationship into a source of strength for each other and a source of good for the world,' PM Modi said in a statement after holding talks with Chinese premier Li Keqiang, who too made a statement, saying, 'We will serve as two engines for Asia.'.