Do I have to recheck my luggage, pass security and get a visa for a connection flight in London?

Question

I'm traveling from Toronto, Canada to India via Connections in London Heathrow & Kuwait in an Indian Passport.

• Canada to London (Terminal 2) 6.55 hr layover - Air Canada
• London(Terminal 4) to Kuwait(Terminal 4) 6.10 hr layover - Qatar Airways
• Kuwait(Terminal M) to India 4.5 hr layover - Qatar Airways

My doubts are:

1. Do I need a Visa either in London or Kuwait?
2. Does Air Canada do the baggage transfer in London to my connecting flight?
3. Someone also told me that to transfer from terminal 2-4 in London, we need to go out of the airport and I believe we need a Visa for that. But my travels is saying it is not required.

All of these bookings are on a single ticket booked via flight center. I've contacted the airlines and flight center but didn't get a confident reply. I really appreciate your answers.

Answer 1

Since your flights are on a single ticket, the airline will almost certainly transfer your bags. For peace of mind, you can confirm this when you check in  ask the check-in agent if your bags are checked through to your final destination or if you'll need to pick them up in London and/or Kuwait.