INX Media Case: The case that led to Chidambaram's downfall

The CBI has expanded the probe against former finance minister P Chidambaram, bringing under its ambit foreign investment clearances given to companies other than INX media during his tenure, officials said Thursday.
The CBI suspects that Chidamabaram and his son Karti also received kickbacks from other companies to facilitate foreign investment clearances through the FIPB route which necessitates the former minister's custodial interrogation, they said.
Both Chidambaram and Karti have strongly denied allegations of corruption levelled by the CBI.