Yes, you are eligible for the IB ACIO (Intelligence Bureau Assistant Central Intelligence Officer) Grade-II/Executive exam after completing your B.E. in Computer Science. The basic eligibility criteria are:

1. Educational Qualification: A bachelor’s degree in any discipline from a recognized university (which you will have after graduation).

2. Age Limit: Generally 18 to 27 years (with relaxations for reserved categories).

3. Nationality: Must be an Indian citizen.