How did dr. Br ambedkar try …

BR Ambedkar tried to improve the conditions of the Depressed Classes in the following ways: 

In 1930, Dr. BR Ambedkar organised the Dalits (the untouchables) into an organisation called the Depressed Classes Association, now known as scheduled caste. 

• His ideas regarding depressed class deferred from that of Mahatma Gandhi. He wanted separate electorates for Dalits.
• Whilst at Round Table Conference in London he demanded separate electorates for Dalits and the British coloniser conceded his demand. This caused Mahatma Gandhi to fast unto the death because he believed that separate electorate for the Dalits would slow down the process of their integration into the main society. 
• He signed the Poona Pact with Gandhi ji and the Congress giving the opportunities to depress to secure reserved seat for Dalits in the provincial and Central Legislative Council to be voted in general election.