The bus halted at intermediate pick-up points to fill up empty seats. In this process, the bus staff & the 'would be' new passengers were seen negotiating the fare for some time for petty tens of Rs. delaying the bus with prime customers.
The good thing with Purple bus was that it did not halt at food malls nor went inside Lonavala, which reduced the journey time a bit. It halted near toll booth for wash-room for 5 mins. which is sufficient.