Spice Jet Airlines — flight delayed

We are travelling from mumbai to hyderabad by flightsg703 at 22:45. As we boarded the flight on time but after they started on the runway they came to know that there is some technical issues so they told us it will take some 10 to 15 min they are fixing and almost after 45 minutes, when we asked that how much time they will take more then they informed us that it will take more 10 to 15 minutes till then they was no one informing anything such a unprofessional behaviour. The flight is delayed for an hour.