After applying the fixes to a common 1:44:58 (23.976 fps) video file of Dhobi Ghat , the correct .srt header should look like this:

2 00:02:15,120 --> 00:02:18,880 [crowd murmur] "What's happening? Why is the train stopping?"

Here are the key features of a "Fixed Subtitles" version for this specific movie:

(Note: This method works only with certain subtitle formats; use Subtitle Edit for reliability.)