Now questions comes how ? GATE 2016 
You can start preparation of engineering mathematics from your first / second year because engineering mathematics is a part of first and second year syllabus of B.E. / B.Tech.
Am I eligible for GATE ?
If you start preparation for engineering mathematics as early as possible it would be good for you because candidates either get admission in B.E. / B.Tech. course after clearing 12th examination or after completing Diploma in engineering. In both the levels you must have read mathematics which is not more different than engineering mathematics of B.E. / B.Tech. level.
Just after completing 12th or after completing Diploma in engineering with mathematics as one of your main subject you get admission in engineering you study engineering mathematics in first and second year syllabus of B.E. / B.Tech so you would be in a flow. I mean to say if you any how would be able to continue this flow from 12th / Diploma in engineering to engineering from first year to final year you would be master of engineering mathematics finally.
Many candidates who were good at their mathematics at 12th / Diploma in engineering level as well as engineering mathematics degree level but start their preparation at the last months of preparation of engineering mathematics for GATE and get less marks in engineering mathematics section of GATE paper.
So if you take little bit awareness about this you could be able to get advantage of this 15% marks of total marks. As per GATE exam pattern engineering mathematics cover 15% marks of total marks. So it would play a major role in your final selection.
must check : GATE 2016 books & previous papers
Keep Visiting Kopykitab.com For Part-II…. How to prepare for General Aptitude for GATE 2016 ?