The protest has been organized by the Disabled Soldiers Association Against Injustice.
A spokesman for the Association DMPB Dissanayake said the protest was launched to bring it to the President's notice their suffering and injustice towards them.
He said a five-member group had already been given access to enter Temple Trees for a meeting with the President.
Dissanayake said that all the protesters had served a minimum of 22 years in the Service of the armed forces.
He said that the differently-able soldiers saw their forced retirement from service as unjust.
The protesters also claimed that some of the rights that other pensioners are entitled to had not come their way.