Ahmedabad/Kolkata, Nov. 22 -- Union home minister Amit Shah on Friday described the ongoing Special Intensive Revision (SIR) of electoral rolls in 12 states as a "purification process" of the voters' list and added that the Centre is determined to throw every illegal immigrant out of the country. Addressing the BSF Diamond Jubilee celebrations in Gujarat's Bhuj, Shah said: "...SIR is a process to protect and purify our democracy."P8...