Field experiments were conducted at research farm of Institute of Agricultural Science, Banaras Hindu University, Varanasi during dry seasons of 2001-04 to find out the suitable age and number of seedling for maximizing productivity of boro rice cv. Gautam. Transplanting of 70 days old Gautam seedlings gave the highest grain yield of 7.0 t ha^-1 followed by 60 days old seedlings and both were found significantly superior to transplanting of 80 – 90 days old seedlings. Transplanting of 4 seedlings per hill registered significantly higher grain yield (4.75 t ha^-1) than 6 and 2 seedlings hill^-1.