Answer for TAX RATE OF SEEDS
I found 1209 is for seeds and 1005 is for maize(corn) and both are in the same schedule I.E schedule I in goods-rates- booklet.
Hence tax rate of goods mentioned in schedule 1 is NIL.
Also If you put maize(1005) in container and its bearing a registered brand name, than only it is taxable @ 5% refer Schedule 4
For complete list and rates click here
Hope you find the answer.