(b)In Bi-purpose Higher Secondary schools, the one post sanctioned in the scale of RS. 150-10-200-E.B.-10-250 shall be filled by a sufficiently qualified teacher of Science, who should apart from teaching his own subject, be able to look after the working of the entire Department of Science including its development and improvement in the standard of teaching. If in a Bi-purpose Higher Secondary School, three subjects of Natural Sciences, viz., Physics, Chemistry and Biology are taught, there shall be two Science teachers in the scale of Rs. 125-5-160-E.B.-5- 200 in addition to the one in the scale of Rs. 150-10-200-E.B.-10-250. Thus there shall be three Science teachers for these three Science subjects in the above-mentioned scales. If there is provision for only two subjects of Natural Sciences, one Science teacher in the scale of Rs. 150- 10-200-E.B.-10-250 and another in the scale of Rs. 125-5-160-E.B.-5-200 shall be appointed for those two subjects. One of the remaining two or three posts in the scale of Rs. 125- 5-160-E.B.-200 as the case may be, shall be reserved for a teacher of English, possessing Master's or Honour's degree in English and the rest shall be filled up by teachers of other subjects of the Humanities group according to the requirements of the school.