International to International transfer at Beijing Capital Airport

I will arrive from EWR to PEK (Air China) going to DEL(Air China) to AMD(Air India) My luggage will be checked through to Pek or Del? Do I go to the transfer desk after I arrive? I have a 5 hour layover, will I get a chance to grab a bite to eat at the airport such as McDonald's ( do they take foreign credit cards at the airport)?