Here you have not mentioned tour academic qualifications, and what you are doing presently. Seems that you have passed 12 standard with Physics, chemistry and mathematics. To become a software engineer, you should have an aptitude for this field. To test this, first answer the following questions;
Do you have interest in computers?
Do you wish to make new software programs?
Do you think that existing software, you are working with needs some improvement?
Do you love to spend time with your machine?
If the answer of all the questions is YES, then you have aptitude to become a