Mr. Bhaskar :
Advocates need not work for a wage - wage is something paid to a labourer or workmen - Your confusion is mixed up with the term 'continuous service' for the purpose of calculation of Bonus, gratuity etc etc. Dont worry about 240 days or anything else like that. For getting salary or wages one must be on the rolls of the company - a retainer wont be on the rolls of the company -(for your better understanding, you see panel advocates retained by the bankers - think in those terms) he only works for his fees and his employment is temporary can be renewed periodically or terminated on mutual understanding or agreement. He is not eligible for bonus or gratuity or incentives or retirement benefits - Hope i clarified your doubts.