No special permits in India. A few simple practices keep things smooth.

Carry-on, not checked

Always. Cargo holds can drop below 0°C — that destroys the pen.

Cool pack helps

A small insulated pouch with a frozen gel pack keeps the pen well within range for a 6-hour journey.

Security scans

X-ray of the pen is fine. Just keep it in original packaging and have your prescription handy.