I got ZEE T V shares from NRI quota in 1993 I sold in Feb 1999 How can | get bonus shares/benefits that period

I got zee t v shares in 1993 from NRI quota. I sold out inFeb 1999 I could not get any benifts and bonus shares because of chaging my address. what benifts are offered during that time and How can I claim my benifts from zee t.v