DACCA, Pakistan, Aug. 18—‐A Government spokesman said today that Sheik. Mujibur Rahman, imprisoned leader of the Bengali separatist movement of Pakistan, is already on trial.

The spokesman, confirming widespread reports, said that the trial of Sheik Mujib, leader of the outlawed Awami League, began on schedule a week ago today, recessed over the weekend and resumed this week.

He did not disclose where the trial was being held. The proceedings are in secret and the Government has not said when a verdict can be expected.

Sheik Mujib was arrested by troops here March 26 and accused of treason. The main charge on which he is being tried is “waging war against Pakistan,” a capital crime.

In another development, Lieut. Gen. Tikka Khan, the military governor of East Pakistan, has formally charged 30 members‐elect of the National Assembly belonging to the Awami League with crimes ranging from sedition to inciting to rape and murder.

Two weeks ago Pakistan's President, Gen. Agha Mohammad Yahya Khan, announced that 79 Awami League members‐elect of the Assembly had been disqualified because of “antistate activity” and that their seats would be filled in a by‐election.

In a national election held last Dec. 7, the first in Pakistan's history, the Awami League won nearly all the Assembly seats in East Pakistan, and consequently a solid national majority.

But the Assembly was never convened and, following the military occupation of East Pakistan beginning March 25, the Awami League was suppressed.

In a white paper published two weeks ago, the Pakistani Government charged Awami League members with killing 100,000 non‐Bengalis before the military occupation began.