Main problem is not of geographical terrain/dense forest or attacking warfare techniques. Our security forces have tackled these issues in past and emerged victorius in other similar conditions in various parts of country.
Issue is intelligence failure due to lack of trust among local inhabitants. Local tribals apart from being illiterate and backward, face language issues in communicating with troopers who are from different regions.
Also,they are fearful as even on an iota of doubt on any villager for helping the police/administration/paramilitary, Naxalite hang them publicly in market.
Thus,they...
more... have been able to wipe out a generation of Congress leaders, abduct and harass police and administrative staff
So information gathering about Naxals is tough. They get to know every details of troop movement but their own plan is hidden. What ever is known often comes out to be false, spread intentionally to misguide.
Hopefully, we will be able to come out of these issues.