in the strech of NOQ-NJP & then NOQ-NBQ u can find daily passengers always... no matter AC or SL... full of railway employyes in AC coaches,,
and in my view the TTEs of Alipurduar Div. are more polite than LMG or RNY div. and also less checking u'll find in APDJ... so people are fearless in travelling in SL or AC even AC Attendent's berth outside ACs