Delhi, Aug 9.—About a million Indians marched through the streets of India's capital today to express support for Mrs Indira Gandhi's Bangla Desh policy and hear her appeal for unity in a time of crisis.

The Prime Minister told the mass rally India was not frightened by threats of war such as those made by President Yahya Khan of Pakistan and her Defence Minister, Mr Jagjivan Ram, declared that India would reply “suitably if anyone misbehaves on our borders.”

The march and a rally meeting, organized by the ruling Congress Party to voice support for the Government's policy, coincided with the signing today of an Indo-Soviet friendship treaty.

Congress sources said that an estimated one million people from states adjoining Delhi took part in it.

The five-mile march through the city held up traffic at several places for hours. Lorries, buses, bullock carts and tractor-drawn vehicles, which brought the demonstrators cluttered up Delhi streets—Reuter.