The great ruler of Sena dynasty in West Bengal who conquered the whole of Bengal in AD 1095 was

1. Ballala Sena
2. Vijaya Sena
3. Keseva Sena
4. Lakshmana Sena

Answer: Vijaya Sena

Explanation: During his illustrious reign of over six decades, Vijaysena, the esteemed ruler of the Sena dynasty, propelled his family, the Senas, into the spotlight. Renowned as the greatest ruler of his lineage, he accomplished the remarkable feat of conquering a significant portion of Bengal, establishing his dominion over vast territories.