Why India is not a great nation?

Major General Mrinal Suman, AVSM, VSM, PhD, commanded an Engineer Regiment on the Siachen Glacier, the most hostile battlefield in the world. A highly qualified officer (B Tech, MA (Public Administration), MSc (Defence Studies) and a Doctorate in Public Administration) he was also the Task Force Commander at Pokhran and was responsible for designing and sinking shafts for the nuclear tests of May 1998.

As India celebrates 62 years of Independence, one tends to wonder: what makes nations great? Why is the US an undisputed world power? Why has Britain remained undefeated for centuries? Why has India succumbed to foreign rule so often? Why is India still struggling with internal dissensions and fissiparous forces? What does India lack?
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Why India is not a great nation? click me