Question

During their school Silver Jubilee Reunion, four alumini were discussing their starting annual salaries back in 1981. The salaries in question were rupees 40,50,60 and 70 thousand per year. Of course, the present Md of our private company earned the most. Arvind earned more than biswajit, and the doctor earned more than druv the engineer. Chinamay could not remember what he started on Biswajit, the lawyer did not start on 50,000 nor did dhruv.