Hi, Ratul:
Unfortunately, the warranty would not be valid in Bahrain, since the model you want in the USA is not marketed or supported in Bahrain.
That info is stated in the link below...
HP - Global Warranty and FAQs | HP® Customer Support
What is covered by HP Global Warranty
HP Global Warranty covers HP products at the level of standard warranty offered in the country in which it is used. For example, a product purchased in country "A" and moved to country "B" receives the current warranty coverage provided by country "B" (if that product is marketed or supported in country B).
From my experience, the only HP PC's that would be covered by a global warranty are the business class PC's where the same model is sold in many countries.