There was some initial demand for an independent Tamil state following the adoption of the federal system.
The book, which started selling this month, has had mixed results, with initial demand strong, but then sales slowed.
Given all this, it is easy to see that there will be huge initial demand for the book.
The company said 500,000 was its estimate of initial demand.
Employees received their phones in July after the initial demand subsided.
It refuses to meet the simple initial demands - respect and discussion.
Often this can be achieved by looking beyond the initial demands to discover the underlying ones.
Our initial demand was to bring the debate forward to Thursday.
"A lot has changed since I made my initial demands," he added.
"I'm glad they have dropped their initial demand," he said.