Fundamentals Of Data Structures
http://www.onestopgate.com/gate-books//details/fundamentals-of-data-structure-121.asp
Data Structures Using C And C++ (2nd Edition)
http://www.onestopgate.com/gate-books//details/data-structures-using-c-and-c--123.asp
Data Structures And Algorithms Analysis In 'C'
http://www.onestopgate.com/gate-books//details/data-structures-and-algorithms-124.asp
COMPUTER SCIENCE & IT (GATE Solved Papers)
http://www.onestopgate.com/gate-books//details/computer-science-it-gate-so-153.asp
DBMS
http://www.onestopgate.com/gate-books//details/dbms-362.asp