Record update from one table to another table

Hi All,

I have created two tables naming T_1 and T_2.And have create two forms with these two tables as Table_1 and Table_2 respectively.

The field list in both the tables are same.And the fields are

1.LeaveId

2.NoofDays

3.RequestRaised

"RequestRaised" is a checkbox field.For a particular record When the "RequestRaised" field in Table_1 is updated,The same record in the Table_2 should get updated.

How to update the "RequestRaised" in Table_2 when the "RequestRaised" in Table_1 is updated.

Appreciate your help.

Thank You

Rajee