The purpose the study is to find the techniques used in schools to develop the knowledge of teaching staff and the barriers faced by the teaching staffs in updating they knowledge. Convenient sampling technique is used in collection of data . This study contains both primary and secondary data .secondary data is collected by reviewing journals and websites where as primary data is collected by issuing questioner 60 questioner was issued and 40 responses were received the data was analysed with percentage analysis tool. The study found out that lack of time and lack of information are major barriers in updating knowledge and workshops, webinar and training programs are various modes by which knowledge is updated in higher education.