Thiruvananthapuram:
Police have arrested main accused K Satish in the murder case of the executive director of the Kerala-based Muthoot group Paul M George.
On Monday, 11 people were arrested in the case.
The businessman was stabbed to death in the early hours of Sunday in an incident of road rage.
Police say the businessman's car hit a bike and an argument broke out after which George was stabbed four times.
Another person travelling with him was injured.
Police say the assailants were drunk but they are yet to arrest the person who actually stabbed George.