ASKWB

Dear All,
I am an assistant teacher in West Bengal govt. School. I would like to know about service book updation. I have taken 19 days study leave for b.ed exam. I have applied for Study leave and it is under process. Study leave approval will take long time, it may take 1 year or upto 5 year.
In the mean time, I got mutual transfer in another school and I will be transferred to new school after two months. My service book is not ready in present school. They will give service book to me after 7 months for new transfered school.
My study leave will be recorded in the service book after sanctioning or approval of the leave.
Please let me know below two queries and oblige me.
Who will update my approved study leave in service book during stay with present school or service book has not been transfered to new school?
Who will update my approved study leave in service book during stay with new school or service book has transfered to new school?
Regards,