Yes you can. you can open your own lab after completing your bsc Microbiology course. Bsc microbiologist can open his own laboratory , like blood test and other test. You can do your Msc as soon as possible. candidate who has completed B.Sc. in Clinical Biochemistry/Medical Biochemistry or B.Sc in Clinical Microbiology/Medical Microbiology are eligible to join for M.Sc MLT in Clinical Biochemistry or M.Sc MLT in Microbiology and Immunology respectively. You have to have relavant skills and training. Also you can try doing some certificate courses for a safety. It would be better if you have a Msc in microbiology.

Here is a list of some certifications

Certification in Laboratory Technology

Certification in Medical Laboratory Technology

Certification in Blood Bank Technology

Certification in Clinical Diagnostic Techniques

Certification in ECG Technology

Certification in Medical Record Technology

Certification in Cath Lab Technology

Hope this helps.