Hi.

According to the official eligibility criteria for SSC Tech Entry, YES you are eligible to join Indian Army through SCC. However you can only do that when you complete your engineering OR you are in final year.

Educational Qualification for SSC(Tech) (Men and Women).

Candidates who have passed the requisite Engineering Degree course or are in the final year of Engineering Degree course are eligible to apply. Candidates studying in the final year of Engineering degree course should be able to submit proof of passing by 01 Apr 2021 and produce the Engineering Degree Certificate within 12 weeks from the date of commencement of training

Good Luck