Does any one knows about this disease? And what are the fertilizers to use

Hi Satyanarayana. It seems to be like Rice Hispa , but not sure. Lets click on green link for checking symptoms and taking control measures from Plantix library. As per your query - You can also use "fertilizer calculater", "crop Advisory" and "See all tasks" sections available here on home page of Plantix to increase your crop productivity.