The spread of Naxalism/Maosim and entrenched power of Communists is biggest threat to our civilization, prosperity and identity. Make no mistake, these groups are abetting each other. Every informed Indian need to aware of this cancer.
The second but equally powerful threat is white-man's lunatic passion of spreading their faith and culture by means of abundant dollars. Trust me, it's even more dangerous than Musalmaani terrorism. White man knows how to do it: loot other people's culture, identity and everything they stood for since beginning of times. They've done it all over the world: South America, Africa and now Asian countries are becoming their victims.
Both of these foreign ideologies are very powerful and have proven records to do whatever destruction they intend to do.
Friends, secularism doesn't mean loss of your culture and value. India can have future only if Hindu values are kept and improved. Otherwise, we're doomed.