@khfhasan bro, No problem at all... Its just that the link that you have posted for the info also says that its 4KVA and also the price that you have posted for new to be 145-150k is not correct...
Though its an excelent Gen.Set, even for 150K its worth every penny..
Bro, Maybe you have got some other model with higher output, I am just taking the link in account that you have posted for the info of your Gen..
Akber Bhai, You never mentioned the model number of your Gen, if its EM6000GN, its 4KVA for sure :P..