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, dealing a blow to Apple Inc.’s manufacturing push in the South Asian country.

Apple's strategic push into the Indian market appears to have encountered a significant roadblock due to Foxconn's move to send Chinese engineers home from India operations, raising questions about the pace and ease of Apple expansion plans in the subcontinent.