Oil palm is one of the major oil yielding crops in the world. Insect pollination is a vital process that decides the yield in oil palm. Adult weevils feed and multiply on anthers of male inflorescence. Inflorescence production and weevil population was more during onset of monsoon and later on it was gradually declined. During occasional visits to female inflorescence (due to anise seed like odour-estragole-5, 4allylanisole), they would shed pollen grains and get back to its original place of host which would cause adequate pollination. Both male and female inflorescences were produced separately in successive whorls. Production of male inflorescence ranged from 0 to 2 and at least one male inflorescence (mode=1) could be seen in each tree. Female inflorescence production ranged from 0 to 1 from July 2009 to February 2010 except during August 2009 (1 to 6) and October 2009 (0 to 3). Anthesis of male inflorescence accounted for 10 to 14 days with more weevil population between 4th to 7th days which coincided with maximum emission of attractive odour (estragole-5, 4-allylanisole). Insect visit was observed for only 2 days of stigma receptivity. Inflorescence production showed significant positive correlation with relative humidity and rain fall and significant negative correlation with maximum temperature and sunshine hours. Whereas, monthly bunch set showed significant negative correlation with RH. Wind could be offer only less contribution towards pollination and fruit set.