Apple's effort to expand iPhone production in India has encountered a setback as Foxconn has recalled hundreds of Chinese engineers

Apple's largest iPhone producer has reportedly ordered hundreds of its India-based Chinese workers to return to their native China but for unspecified reasons.

Foxconn Technology Group has asked hundreds of Chinese engineers and technicians to return home from its iPhone factories in India, a move that is likely to hamper Apple Inc's plans to ramp up production in the country.