Capital gain

IF AN ASSESSEE SOLD AGRICULTURE LAND FOR 1 CRORE WHERE CAPITAL GAIN IS 60 LAKH FOR 54B EXEMPTION HE MADE AN AGREEMENT ON 100 RUPEES STAMP TO BUY ANOTHER AGRICULTURE LAND FOR RS. 1.40 CRORE AND PAID AN ADVANCE OF RUPEES 40 LAKH BUT AFTER 4 NOTICES RECEIVED FOR NON PAYMENT OF BALANCE AMOUNT 40 LAKH IS FORFEITED CAN HE CLAIM EXEMPTION OF 40 LAKH U/S 54B OR IS THERE ANY WAY TO SAVE CAPITAL GAIN