@aj: please refer following reports:
1) income statement for 3 months ended 30/06/2011: http://www.cse.lk/cmt/upload_report_file/509_1313140039919.pdf
2) income statement for 3 months ended 30/09/2011:
3) income statement for 3 months ended 31/12/2011:
I think the one-off gain you are referring to is the "Other operating income" field which is very high in report number 2) above.
Let's take that off. But have a look at the gross profits, they have increased in the last quarter.
In any case, for the last two quarters let's assume an EPS of 0.30 (I haven't done the exact calculation but I suppose reducing an EPS of 0.64 to 0.30 would account for the one-off gain).
So, the estimated EPS = 0.30 * 4 = 1.2, P/E = 6.5 / 1.2 = 5.4
(Note that I used 6.5 because that's the price I paid for this share
Now, my estimate is not very accurate because the EPS for the quarter 31/03/2011 is 0.01. But I think this was due to some plantations issue and I think it's safe to assume it will not repeat again and again.
I can do a more detailed calculation if you prefer, but I think 6.5 Rs per share is very much attractive for RICH.