New Delhi, April 22 -- The Supreme Court will this week hear a series of important cases - the National Registry of Citizens for Assam, a criminal defamation case against Congress president Rahul Gandhi, whether or not a film on Modi can be released during the elections, and if the Central Bureau of Investigation (CBI) should be allowed to arrest former Kolkata Police commissioner Rajeev Kumar - in the shadow of sexual harassment charges against Chief Justice of India (CJI) Ranjan Gogoi....