The Union HRD Ministry has constituted a sub-committee of Central Advisory Board of Education (CABE) under Chairmanship of Telangana's Deputy Chief Minister to look into issues of girl's education. The terms of reference of the sub-committee would be to examine the reasons for low participation of girls in education, including the socio-economic factors with resultant gender bias, and suggest ways to reduce gender disparity so as to achieve better gender parity index, an official release said here today.