Class 12-Commerce

Let us understand that software development process in not only programming. It is collaborative effort where in addition to good technical resources addition resources such as Domain or subject matter experts, Business Analyst, Testers and project management specialist are also required. On average, 50% of software development team consist of such resources. With commerce background, you can still become a technical resource by doing BCA from colleges where eligibility criteria is not Maths as 10+2. IGNOU allow non Maths students to seek admission in BCA. You will be required to pursue and pass additional basic course on maths.
You can join IT industry by following ways:
(a) As Business Analysts (BAS) are responsible for identifying the business needs of their clients and stakeholders to help determine solutions to business problems. You can do obtain BA certification after any graduation degree such as B.Com Hon etc. International Institute of Business Analysis (IIBA) is the recognised, non-profit association for business analysis professionals around the world. In order to have BA career you may obtain professional certification such as Certified Business Analysis Professional (CBAP) or Certification of Competency in Business Analysis (CCBA). You may refer to https://www.iiba.org/ for further details.
(b) As Tester: You can do testing course after graduation degree and seek job in IT industry as a tester.
(c) You can join IT industry in non technical role after MBA in HR/ Finance.
(d) You can join IT industry after MBA IT in Pre-Sales support, Account Management and Sales Management roles.
(e) If you want to take up only technical roles then you may obtain industry specific certification in programming to join in developer.