Sure, will post my experience.
Trip is on hold as of now, was to visit family however it turned out that they're coming to India in December, so I pushed my plan to maybe Spring '19.
Most likely will opt for a routing via LHR unless it is significantly expensive compared to other options, since most folks here have confirmed it is indeed possible to go into the city,it's worth a try I guess. Worst case may have to spend half a day at LHR T5 :P