I got 56% what should i do

Dear Deependra, The question seems incomplete as you haven't mentioned your preferred branch / stream. Kindly mention the branch or stream that you wish to pursue. However, as you have posted the question under science and engineering, I would like to say that for Science student, the best option

According to you have to give your 12 again for good percentage It good for your future.If you have more % You can choose good college.

As you have less score, I think you are only eligible for ip university ( eligibility criteria is 50%) there are some very good colleges in ip university which gives good placements.you should go for admission in ip university for b.tech degree.