its a good book...but DT requires 3 to 4 revisions...which is difficult if u follow singhania...from revision point of view it is better to follow Padhuka
c silviya... it depends on which u hv gud control... u may refer any of Singhania or Vinod Gupta or Girsh Ahuja... all r gud... bt the 1 which makes ur concepts clear is d best 4 u.... so c to it...