Thus far in the month of February, the Nifty India Defence index slipped 5.5 per cent, as against 1.3 per cent rise in the Nifty 50.Thus far in the month of February, the Nifty India Defence index slipped 5.5 per cent, as against 1.3 per cent rise in the Nifty 50. Latest News [ SOBAN NEWS: International and National ]