TRT Related Issue specific to India

I have consulted a professional who has recommended to take only 20mg per day. I recently got testsoterone Enanthate from a pharmacy and that was 250mg/ml stored in a single use ampoule. I want multi -use vials to be able to do 20mg per day. What then are my options in India? Also, which needle is easier for correct dosing since lower gauge causes many issues tbh? Thanks.