Dear Yadav, I never accept the author's contention that south is doing well because of its tradition but,reading your comments make me to doubt whether i am wrong. Gazni,ghori etc. have ever used your stuff inside the head(i am sure it is only space )to think why rulers from tiny Afghanistan,Uzbekstan etc could overrun and plunder this country at will?Do Know that Rajendra Chola from Tamilnadu was raiding upto Ganges at the same time when Ghazni was plundering the North? Can you quote one example from North or from the entire country similar to the feat of Cholas capturing the Java,Sumatra and present Malaysia? I know it is too much to ask from you to find answers for these.Anyway i don't intend to answer to someone whose thought process is set to 2500 years backwards with a nomadic background. If the South and Maharashtra have n't contributed to the Technology in this country,probably you people would be fighting with Pakistan with bows and arrows(like Ram did),not Agni,Prithvi,BraMos etc. For your comments on Tamils,it is suffice to quote this. An Elephant keeps away from the path of a dirty Pig,not out of fear but out of sheer contempt.