Capital gains query

Request you to provide answer for the question given below:-

X, a non resident remits $40000 to India on April 4, 1987. The amount is partly utilised in purchasing the following assets on April 10,1987.

Silver     10kg for   Rs30000

Shares in Indian Co.(unlisted)----- 2000 shares for Rs24000

X transfer these assets on June 10,2010 for total consideration of Rs. 850000( silver for Rs.70000; Shares for Rs. 780000).

Compute capital gains for AY 2011-12

The telegraphic transfer buying/ selling rate of US dollar adopted by SBI is as follows:-

 Buying(1 $)  ----   Rs. 17.50---- April 10,1987

                                Rs. 28.30---- June 10, 2010

Selling( 1$)----   Rs. 18.10---- April 10, 1987

                              Rs. 29.10---  June 10, 2010