So, here is a nice coincidence.

On my recent onward/ return flight from BOM, I had the same a/c serving both the days, was seated in the same seat (9J), AND had the same SFS manning the cabin - all within within 5 days. Both she and I were pleasantly surprised to see each other!

She informed me that it has never happened before that she got the same flight within 3-4 days of doing it last (typically it tends to be at least a month or two) and she had the same 'dispatcher' for this flight, who was also surprised to see her.

I've met several crew 2 times, and a couple of them 3 times, but never the same person on my onward and return segments, and the same a/c, so one of those Deja Vu moments...