In ragu dasa sun bhukti is the sixth bhukti. According to virutcha shastra, one has to plant thanga arali maram to avoid the ill effects of ragu. It is called தங்க அரளி மரம் in tamil.
one day before the day of plantation, little bit of wheat should be immersed in water. The plant should be planted on the morning of first sunday of ragu dasa sun bhukti period in temple garden and sides of pond.After plantation wheat water should be given to the plant. The wheat should be given to cow.