BJP president accuses Congress of enabling 2013 Jhiram Valley Maoist attack through 'soft' Naxal policy and alleged appeasement.
Ambush killed 27, including senior Congress leaders Nand Kumar Patel and son; inquiry highlighted major security lapses.
Nadda credits Modi govt for reducing Naxal footprint; Congress calls it 'politicisation of martyrdom' and questions BJP's own record.