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.

Apple’s biggest assembly partner Foxconn has ordered more than 300 of its Chinese employees to return home from its iPhone factories in India, Bloomberg reported, citing anonymous sources.

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.