law: Pension’s Act, 1871
  4. Bar of suits relating to pensions
  Except as hereinafter provided, no Civil Court shall entertain
  
  any suit relating to any pension or grant of money or land-revenue conferred or
  
  made by the 10[Government or by] any former Government, whatever may have been
  
  the nature of the payment, claim or right for which such pension or grant may
  
  have been substituted.