Dear B.C.Chordia,
There is no restriction in Section 74 of the Customs Act, 1962 that capital goods must be exported to the same person, but it can be any customer.
You would have to seek permission from the CBEandC for exporting the capital goods out of country. You may draft an application, stating all material facts, ( i.e.from importing under EPCG to partial fulfillment of export obligation, applied for redemption and after payment of applicable duties, and submitting the documentary evidence to Customs Department/Central Excise Department to the level of their satisfaction, you want to remove the capital goods as export out of India) and submit it before CBEandC.
CBEandC may put some conditions to safeguard the revenue and grant permission accordingly. On the basis of this permission, you may export the Capital Goods.
Regards
Team YAGAY and SUN
(Management and Indirect Taxation)