Complex sentence: The senior Talukder tries to implant the progressive ideas to his grandchildren because the present generation are not aware at all of this liberation struggle and again at the same time the anti-liberation forces try to exploit the liberation war in their won interests.
Split into simpler sentences: The senior Talukder tries to implant progressive ideas to his grandchildren because the present generation are not aware at all of this liberation struggle. At the same time, the anti-liberation forces try to exploit the liberation war in their won interests.