Nothing unusual about wreckage not being found in Arunachal/Himalayas.
Wreckage of an AN-12 which crashed in 1968 was found, 37 years later (2005).
Matlab yeh purana chutyapa hai
Nothing new
Indians would often claim and boast that their satellites can even see when a Pakistani soldier comes out of his bunker to take a leak but somehow the Indians can't find their own sh**.
I wonder what they discuss in BJP party meetings before election
"Elections aa rahai hain. Kuch jawan mar jaye to itni seats to pakki ho jaye gi"

And that's not a military blunder.