The Indian prices quoted are absolutely ridiculous and amount to a total rip off. Also, the dealer is lying to you that the AE4000 will be higher priced than the AE3000. The reason for this is, that the official Panasonic MRP for the AE4000 is US $1000 less than the MRP for the AE3000. Thus the AE4000 should sell for substantially less than the AE3000. But in any case I would suggest that you ignore the so called official Panasonic dealers and buy from the grey market. You should be able to get the AE4000 for aprox. 1.1 to 1.2 lakhs in the grey market.
Electronic products sold in most countries come with a warranty that is valid in that country only. Thus if you buy something in the US, it will not be covered under warranty, by the company in India. Personally I suggest that you forget about the warranty, since, based on the AE3000 prices, you will end up paying a premium of almost 85% for the warranty. If having a warranty is so important to you, I will be more than happy to warranty the product for you at only a 50% premium.