With some 700 exhibitors, the number of participants has shot up since previous outings. And there are bombs, guns, missiles and planes aplenty.
However, as I strolled through the stalls, the one big feeling I was left with is how large a pie 'defense' really is.
We tend to think of 'arms' as monolith entities - the Indian Air Force, the Defense Ministry etc.
However, beneath all this seeming monotony are the hundreds of various small contractors and industries that supply these machines and institutions. The exhibits are an eye opener for that at least.
You have stalls, and proud exhibitors with glossy displays and brochures, for everything from 'cast titanium alloy springs' to 'finely crafted, ground gears' to 'coated, anti-crack rivets' - literally nuts and bolts.
Image: Indian Air Force Acrobatics team Sarang performs during the inauguration of the Aero India 2013 at Yelhanka Air base in Bengaluru on Wednesday.