Phosphorus is considered to be the element less mobile in the soil especially due to its anionic nature and fixation reaction in the soil. In red and laterite soils, the availability of supplied P is reduced due to the fixation with Fe and Al. A leaching study was conducted in soil column of 90 cm length and 11 cm diameter, amended with different organic fertilizers such as FYM, ordinary compost (OC), vermicompost (VC), microbial compost (MC), unfortified (TOF) and fortified (F-TOF) thermochemical organic fertilizers, in the first 0-15 cm depth. The leachates collected from the soil columns at different intervals and leached soil at four different depths (0-15, 15-30, 30-60 and 60-90 cm) were analysed for their P content. This was to check the mobility of phosphorus anion under the addition of organic fertilizers and to study the P retaining and supplying potential of different organic fertilizers. Application of different organic fertilizers had increased the availability of P. Leaching loss of P was highest from F-TOF amended soil followed by OC. It indicates the increased availability of phosphorus in water soluble form with the addition of F-TOF and OC. Application of vermicompost and microbial compost increased P availability and retained higher amount of P in the surface layer of leached soil. It was found that there was mobility for the phosphorus ions towards the downward layer from the surface layer due to the addition of organic fertilizers in the surface layer (0-15 cm)