Accounting treatment for fixed assets insured

AS 10 provide direction but not exactly (When a fixed asset is acquired in exchange or in part exchange for another asset, the cost of the asset acquired should be recorded either at fair market value or at the net book value of the asset given up, adjusted for any balancing payment or receipt of cash or other consideration. For these purposes fair market value may be determined by reference either to the asset given up or to the asset acquired, whichever is more clearly evident.)

in this situation you should record the assets worth 85000000 and difference should be treated as profit.