1) 1st Dec to 15th March : Read the syllabus. 

Start working on your vocabulary and for RC section now as this
cannot be done in a short time and needs a continuos efforts
over a period of time. You may devote 1 hour a day for this
section by reading newspapers and magazines. Read from
various sources on different subjects. Keep a dictionary handy
and consult it whenever required, keep a diary of new words you
come across. Start working on fundamentals for mathematics
and on topics where you consider yourself as weak.
Multiplication of numbers till 35*35 should be remembered.
Squares and cubes of numbers till 25 should be remembered.
Pythogoras triplets with any all the arms less than 200 should be
remembered. Start working on mental calculations with
percentages, fractions etc.

After 15th March continue to spend 30 minutes on reading
newspapers, magazines etc everyday till the end.

2) From 16th March to 11th April :

Devote 1 hour and 30 minutes
everyday for Data Interpretation and Data sufficiency.

3) From 12th April to 10th May : Devote 1 hour and 30 minutes
everyday for Logical Reasoning and Verbal reasoning.

4) 11th May to 7th June , Take section tests on Data
Interpretation , data sufficiency etc.

4) 7th June till end of June for Arithmetic and Algebra.

5) 1st July till 21st July for Geometry, Set theory, Probability and
remaining part of QA.

6) 22nd July to 7th Aug for Section tests on QA.

7) 8th Aug to 21st Aug for section tests on English. By now you
should score well as you have devoted 1 hour a day on reading
newspaper and on improving your vocabulary.

8) 21st Aug to 10th Sept for the section you think you did not
perform well in your section test.

9 ) From 10th Sept to Oct end : Take Full time Mock test twice a
week. In Nov till CAT is held take 3 test a week. You should be
comfortably able to take 25 full time test.

Note : After each section test and Full time test you must go back
and solve the questions which you could not solve during the
given time and the ones that you did not solve correctly.
Spend 2 hours on analysis after each mock.