Trilegal set up in 2000 is an Indian law firm that formerly had a "best friend" tie-up with London-international firm Allen & Overy.
A first generation firm, Trilegal was established by graduates from NLSIU; the three offices worked independently for an year and then merged into one firm making it 'Trilegal'. The main purpose was to break the glass ceiling of family firms and establish a firm which solely considered a lawyers merit. In the beginning the firm recieved some significant projects including a large World Bank funded project for Power Grid. Though the success where little compared to the challenges the founding team faced. However today Trilegal is one of the top five firms in the country.
 Best friend relationship with international firm Allen & Overy
Firms co-founding partner Anand Prasad remarked in a Bar & Bench interview,"It’s a very strong relationship, but not a hard relationship. I mean we are not bound to each other in a very hard fashion but the sensitivity with which we have constructed our relationship actually makes it strong in itself."
The firm has benefitted immensely in terms of acquiring international resources and gaining a perspective on managing a law firm. Trilegal hired A& O partner in 2009 to head the capital markets practice as a lockstep equity partner. 
 Management Strategy
The firm has no managing partner nor any senior partner. The firm is managed through committees, the members of which are slected by consensus. In the event of any disagreement regarding the constitution of a committee a vote would be resorted to. The committees are appointed for different tasks in order to ensure all the partners actively contribute in the working of the firm. To supervise all the committees there is a coordination committee.
The firm follows a lock step method of profit sharing. The firm's lockstep model is similar to that of its best friend Allen & Overy. The founding partners or others are at the top of the lockstep, called plateau partners, entitled to a share equivalent to 40equity points. The share of a partner is determined by the points that he collects, ranging from 10 to 40. eg; if a firm has a profit of Rs 10lakh and all partners together have 100points, then each point is worth Rs 10,000.
 Significant Deals
- Trilegal along with Linklaters advised Vodafone in relation to its multi-billion dollar ($11.1 billion) acquisition of a 67% stake in Hutchison Essar Ltd., a leading telecom company in India which is still one of the biggest M&A transactions in India. 
- Trilegal’s Mumbai office advised Karnataka-based logistics and transport company VRL Logistics in a Rs. 175 crore ($33.2m) acquisition of its equity and compulsory convertible preference shares, by South-east Asia focused private equity (PE) firm New Silk Route (NSR), which was advised by S&R Associates. 
- Trilegal and Link Legal have advised power producer Caparo Energy’s $ 1.28bn contract for supply of wind power projects equipment with India’s largest turbine manufacturers Suzlon India. 
- Trilegal along with Davis Polk & Wardwell advised the joint lead managers Barclays, Citigroup, DBS Bank and Deutsche Bank on $200m Rolta Singapore fundraising. 
- Trilegal advised British multinational bank Standard Chartered in buying out US investment bank Morgan Stanley’s Indian private wealth management unit. 
- Trilegal advised Mitsui in relation to a joint venture (JV) with India’s largest edible oil maker Ruchi Soya and Kagome. 
- Trilegal advised Strand Life Sciences in relation to receiving investments from San Francisco’s Burill & Company. 
- Trilegal along with Linklaters advised DBS Bank India and Singapore in relation to auto-maker Amtek’s Rs 375 crore FCCB round. 
|Name of College||Number of Studnets|
|Karan Singh||Founding Partner||Mumbai|
|Anand Prasad||Founding Partner||Delhi|
|Rahul Matthan||Founding Partner||Bangalore|
|Prem Ayappa||Founding Partner||Bangalore|
|Akshay Jaily||Founding Partner||Delhi|
|Sridhar Gorthi||Founding Partner||Mumbai|