Induction motors

I just wanna ask that which type of induction motor is more widely used in industries. Either it is three phase induction motor or single phase induction motor?

Hello,

3Phase IM are used widely in Industry...

But having said that
The single phase induction motor may rotate in either direction and it is only the starting circuit which determines rotational direction.
For small motors of a few watts the start rotation is done by means of a single turn of heavy copper wire around one corner of the pole.
Starting torque is very low and efficiency is also reduced.
Such shaded-pole motors are typically used in low-power applications with low or zero starting torque requirements,
such as desk fans and record players.

---manju---