India's first Special Economic Zone set up specifically for the aerospace industry was launched at Hallargi, a location near Belgaum in Karnataka. The zone was created to give aerospace component manufacturers a dedicated cluster with the tax and infrastructure benefits that come with SEZ status.
Setting up a sector specific SEZ for aerospace was seen as a step to boost India's role in aircraft component manufacturing and reduce dependence on imports for parts used in both civilian and defence aviation.
Hyderabad does have a strong aerospace and defence manufacturing base, and Ahmedabad and Shimla are known for other industries and administrative roles respectively, but the first dedicated aerospace SEZ was not located in any of these cities.
The correct answer is option 2, Hallargi.