John Grisham: for thriling legal battles
Keigo Higashino: for presenting something new each time
Shatrujeet Nath: for writing thriling narrative
Michael Crichton: for his breathtaking science fictions
Dan Brown: for his fictions
I've always enjoyed reading Jack Higgins -- my no. 1 choice
Then there is Daniel Silva, Jeffrey Archer, Anand Nilkantan, Amish Tripathi, Lee Child .... the list goes on I guess