Train EB in Auto mode due to train doorsopen while departing. TC reset EB - ok. ATPM to next statio n. Train EB in Auto mode due to train doors open while depar ting. TC reset EB - ok. ATPM to next station. ~~~~~ 3724-Train EB in Auto mode due to train doors open while departing. TC reset EB - ok. ATPM to next station.  Checked no FC registered, from ER found drop in DIR but self recovered after 1 sec, Double check with ATS playback was tallied. No ECB was activated and no detrainment door were detected to be open from ER. Found 3724 A side cab door retractable latch mechanism loose with 4 securing screw missing. Intermittend DIR was able to replicated when tug test, Reinstated the 4 missing screw with torque seal, tug test all 4 cab doors ok. NO DIR lit. Detrainment door check ok, Door cyclic and static test for saloon door ok. Done by Saini/Asruddin/azwad 45203