Quaid e Azam

                                                      worked as Barrister

Aged twenty, Jinnah began his practice in Bombay, the only Muslim barrister in the city. English had become his principal language and would remain so throughout his life. His first three years in the law, from 1897 to 1900, brought him few briefs. His first step towards a brighter career occurred when the acting  Advocate General of Bombay, John Molesworth MacPherson, invited Jinnah to work from his chambers. In 1900, P. H. Dastoor, a Bombay presidency magistrate , left the post temporarily and Jinnah succeeded in getting the interim position. After his six-month appointment period, Jinnah was offered a permanent position on a 1,500 rupee per month salary. Jinnah politely declined the offer, stating that he planned to earn 1,500 rupees a day—a huge sum at that time—which he eventually did.Nevertheless, as Governor-General of Pakistan , he would refuse to accept a large salary, fixing it at 1 rupee  per month.

As a lawyer, Jinnah gained fame for his skilled handling of the 1907 " Caucus Case". This controversy arose out of Bombay municipal elections, which Indians alleged were rigged by a "caucus" of Europeans to keep Sir Pherozeshah Mehta out of the council. Jinnah gained great esteem from leading the case for Sir Pherozeshah, himself a noted barrister. Although Jinnah did not win the Caucus Case, he posted a successful record, becoming well known for his advocacy and legal logic. In 1908, his factional foe in the Indian National Congress,Bal Gangadhar Tilak , was arrested for sedition. Before Tilak unsuccessfully represented himself at trial, he engaged Jinnah in an attempt to secure his release on bail. Jinnah did not succeed, but obtained an acquittal for Tilak when he was charged with sedition again in 1916.
One of Jinnah's fellow barristers from the Bombay High Court remembered that "Jinnah's faith in himself was incredible"; he recalled that on being admonished by a judge with "Mr. Jinnah, remember that you are not addressing a third-class magistrate" Jinnah shot back "My Lord, allow me to warn you that you are not addressing a third-class pleader." Another of his fellow barristers described him:
He was what God made him, a great pleader. He had a sixth sense: he could see around corners. That is where his talents lay ... he was a very clear thinker ... But he drove his points home—points chosen with exquisite selection—slow delivery, word by word