Get latest articles and stories on India at LatestLY. Congress MP Karti Chidambaram did not appear before the CBI on Wednesday to join the investigation into an alleged scam pertaining to issuance of visas to 263 Chinese nationals in 2011 when his father P Chidambaram was the home minister, officials said. India News | Visa Scam Case: Karti Chidambaram Likely to Appear Before CBI Thursday.