New York, Sep 26 (ANI): Ministry of External Affairs spokesperson Vikas Swarup on Saturday said that the G4 summit is significant as the leaders of the four countries i.e. Brazil, Germany, India, and Japan will give strong push to inter-governmental negotiations for UNSC reform in the meet. He added that UNGA and UNSC co-ordination needs to be worked on. PM Modi, who is on week-long visit to the United States of America, will call on US President Barack Obama on September 28, their third meeting in a year which reflects shared concerns about an increasingly assertive China as well as a desire to boost commercial ties. Before wrapping up his US tour on September 29, Modi is due to visit Silicon Valley, which is home to technology giants like Google, Facebook and Apple, and invite them to invest in India.