In 2006, after graduating from law school, Jaiveer enrolled in the Delhi Bar and began his career as a law associate with "Economic Laws Practice," a reputed law firm specialising in tax and commercial cases. In 2008, Jaiveer was accepted into the Chambers of
Abhishek Singhvi, who is a Senior Advocate, a
Rajya Sabha MP, and a spokesman of the Indian National Congress party. As a practising advocate at the Supreme Court of India, Jaiveer has been involved in various high-profile cases. He has been on the panel of lawyers representing
Vodafone India in its celebrated case against the Income Tax department, (highest tax liability of US$2.2 billion), where the company refused to pay a tax demand of Rs. 2000 crore (US$330 million), insisting that the transaction of shares in an overseas tax haven, (
Mauritius), had the effect of transferring (i.e. selling) all its assets in India from one party to another, with absolutely no tax liability in India on the sale, whether of sales tax or capital gains tax or any other tax. Shergill served as the
Young India representative for the
International Bar Association, one of the most prestigious lawyer organisations in the world, for a period of two years (2008–09). Jaiveer has also represented one of the two sides in a controversial dispute regarding the offering of prayers at a site claimed by two religious communities in
Karnataka state. Recently, Jaiveer represented the new airline venture
Vistara, a joint venture of the
Tata group and
Singapore Airlines, in the Supreme Court and the Delhi High Court in a petition challenging the entry of foreign airlines into India. He also has a client base spanning India, Dubai, Australia and USA. ==Political career==