Washington: Apna Punjab Media: The US today said India should take action to hold accountable those who unsuccessfully plotted to assassinate a pro-separatist leader in its country. At the same time, America hopes that India will investigate this matter soon, only then the people ‘responsible’ for this incident can be arrested. In this case, America has detained Indian businessman Nikhil Gupta, who had conspired to murder the pro-separatist leader. He was brought to America from Poland. Apart from this, America has also accused former RAW officer Vikas Yadav of being involved in this case. A US State Department spokesperson said, ‘We hope that India’s investigative committee will conduct a proper investigation and hold accountable those found responsible for the conspiracy in the US.’