Ironically, the TT of 16381/82 hasn't undergone any major revision despite the developments happening along its route; advances in doubling, electrification etc has done precious little to improve its run or reduce the travel time.
Incidentally, commissioning of Konkan route & addition of many new trains have seen end to end passengers deserting 16381/82. So CAPE - CSMT - CAPE Jayanti Janata continues to run a leisurely pace, serving passengers travelling to stations enroute, who are left with hardly any alternatives.