The order was issued by the Home Ministry after it was apprised that nearly 2.5 lakh cases were pending before such tribunals, mainly dealing with Bangladeshi immigrants.
Some of the immigrants, who were allegedly involved in anti-national or anti-social activities, had approached local courts prolonging the decision on their citizenship.
In an advisory, the Ministry empowered the tribunals to deliver ex-parte orders and review such directives if the people deemed to be foreigners challenge their findings within a month.
The Home Ministry has mandated the tribunals to record the reasons for granting adjournments in their order.
The Foreigners (Tribunals) Amendment Order issued recently sought to bring about a uniform procedure for tribunals handling complaints about illegal migrants.