PSLV has a good record, certainly, at 28 launches with one full and one partial failure. It's not particularly better, though, than Atlas V (52 launches with one partial failure) or Delta IV (28 launches with one partial failure) or Soyuz-FG (49 launches with no failures). Ariane 5 (with 77 flights and 2 full and 2 partial failures--all at the early stages of the program) ain't bad either.

Number of satellites per launch is a curious metric. And a mostly useless one, I would think, considering modern cubesats, nanosats, and (soon) chipsats. I also dispute PSLV holding that record. PSLV C9 seems to have carried 10. Antares Orb-1 in January 2014 is recorded as carrying 34 spacecraft. If KickSat had worked, SpaceX CRS-3 would have ended up deploying something like 110 individual spacecraft.