Hyundai Motor India — faulty power steering torque sensor

Address:

Hyderabad, Telangana, 500059

I am having one i10 magna 2012 model, i am facing problem with my eps,
Service centre has diagnosed the problem and it is with torque sensor, as per them i need to replace the complete steering column assembly which costs around 25000 only for parts taxes and service charges extra,
Is it mandatory to replace the complete steering column assembly, please advice
Thanks