baqai,
The replacement battery is available from Honda Japan but to date, they have only sold very few batteries. Th ebattries are good for more then 1,50,000kms, this I can say since the battery on my Honda Insight has done more then 1,00,000kms. The cost would be around Rs 1,00,000 to 1,50,000kms.
Fido,
I have with me a 2004 model Premio,with beige interior in white colour, demand is Rs. 14,80,000. Let me know if you are interested, I will mail u te pics on your email address.
Regards