Service conditions in Banks industry was uniform and are not flexible.When compassionate appointments are not in agreement, this can not be forced on Management. However, the bank is free to take their decision considering in giving preference over general category during fresh appointments or some type of outsourcing.
However, you may approach Branch Secretary of the employee's Union in which your late husband was a member, and seek his help. He may bring force on Central Union, who is having certainly a say with TOP MANAGEMENT on mutual understanding.
In view of the humanitarian consideration, Unions may certainly help in deserving cases while considering fresh appointments subject to age/qualification criterion or providing opportunity of self employment through their lending schemes.