India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect [International Relations]

The correct option is "India to Central Asia to Europe via Iran".

Step-by-step Explanation:

1. What is the INSTC?
The International North-South Transport Corridor (INSTC) is a multi-mode network of ship, rail, and road routes spanning 7,200 kilometers. It was established to move freight between India, Iran, Azerbaijan, Russia, Central Asia, and Europe.

2. Route Structure and Significance of Iran:
A primary route of the INSTC starts from India (specifically ports like Mumbai) and crosses the Arabian Sea to reach Iranian ports (such as Bandar Abbas and Chabahar). From Iran, the corridor extends northward into Central Asia and the Caspian Sea region, ultimately connecting to Russia and Northern/Western Europe.

3. Why other options are incorrect:
- The route does not transit through China to reach Central Asia.
- The route heading to South-East Asia through Bangladesh and Myanmar refers to other initiatives like the Kaladan Multimodal Transit Transport Project or the India-Myanmar-Thailand Trilateral Highway, not the INSTC.
- While Azerbaijan is a member and part of the corridor, the complete trajectory is best described as connecting India to Central Asia and Europe, primarily utilizing the transit network of Iran as the main maritime-to-land gateway.