is transit visa needed for one way trip to india?

[Bpositive]

I am planning to travel via BA from DC to Bangalore and travel back from Bangalore to DC through Lufthansa.

I have my AP doc. I know Lufthansa is fine with an AP while I travel from Bangalore to DC visa Frankfurt.

Will I need a transit visa to travel through London to India (one-way)? I have a valid Indian passport and am on Advance Parole.

any thoughts?

[saro28]

You don't need a transit visa for London. Couple of days ago my friend went via London with AP and expired visa on passport.