There is no right either H.M. or TIC to sanction any type of special leave. Special leave in exceptional circumstances, teacher may apply through H.M. after recommendation of M.C. with other relevant papers to W.B.B.S.E.
Please see relevant G.O.’s NO. 1) 79 Edn(S) dated. 28.01.1994 2) 1541.Edn(S) dated. 15.12.1977 3) Board’s No. S/246 dated. 16.06.1995. With regards.