New Price equal = [(Old price / old forex rate ) / (1+ Old tax rate)] x New forex rate X (1+New tax rate)
viva elite standard manual old price:
$5900CIF(my guess) + 120%(old tax) * 130($ rate) = Rs.1687400 (Unimo price 1690000)
New price:
$5900CIF + 200%(new tax) * 130($ rate) = Rs.2301000