A month after exposing the illegal plying of bike taxis by Rapido in Mumbai, Maharashtra Transport Minister Pratap Sarnaik is now facing Opposition criticism after it emerged the aggregator is the lead sponsor for a `Dahi Handi` event organised by his family, reported news agency PTI.

Talking to reporters on Thursday, Nationalist Congress Party (SP) MLA Rohit Pawar accused Sarnaik, an influential Shiv Sean leader from adjoining Thane district, of misusing his ministerial post.

In a much publicised expose on July 2, the Transport Minister booked a ride using Rapido app to verify a senior government official`s claim that illegal bike taxi services were not functional. Pratap Sarnaik booked a ride from Mantralaya in south Mumbai to Dadar in central Mumbai using the app.