How do I make my startup funded?

My friend and I have started a new business in the medical industry in which we have created a medical device. We are the manufacturer, sellers and service providers. We have done testing of our device, and gave it to vendors as well for the testing. The results are outstanding and we have started receiving orders.

We have registered a PVT LTD company, got a GST, IEC number and hired a CA as well.

Both of us have invested from our savings and took PLs. The total investment is about 20L and now we have to apply for medical certification, ISO, BIS certification and all. The total cost would be around 25L.

Problem is, we have exhausted the investment completely and no more money left. And we need to get the certifications asap as vendors are going out of hand. We already made 6L profit (in a year) as well but that too invested.

I need suggestions where can I get funds from excluding shark tank?

I've started a procedure for startup India registration. But any other leads where I can get the funds would be appreciated.