Capital gain calucation very urgent

AUDITOR VINOTHKUMAR (a) (870 Points)

20 April 2014  

Dear Experts,

My client received from notice income tax deaprtmnent reason for  (sale of land) Age 88 Years

1. He wife name Land purchased  Rs. 17,500/- year of 1978

2. he wife expired last five year back. 

3. then he sold now wife asset 10 Lakhs. same time new land purchase for 550000.00 

HOW TO CALCULATE CAPITAL GAIN

Pls guide