For chennai people i will recommend this train to reach Shirdi. u can get tickets easily even two days before the journey. Only drawback is this train starts at sunday but if u desperately need to go Shirdi this train was very convenient. Another drawback is from Nagarsol u need to catch share taxi or cab to reach there(1 to 1.5 hours travel time to Shirdi by road). Normally taxi drivers will demand high fare u can stick to Rs 100 per person. if one taxi driver not agreed u can go for another one so don't go for hurry.