TBH up to the point where I read through your list of school applied to I thought you have a decent chance of getting funded by at least 1/3 of them. I would say your GRE score, while not great, should not impact you too much since you're an international student. The combination of your TOEFL and GRE verbal may raise a red flag. The thing is, you either graduated from a US school and have good grades in writing-intensive courses, or you aced TOEFL, or you aced GRE verbal, one must have at least one of the three. Did you submit TOEFL or IELTS to the admission? Bc your IELTS score is good. For someone working in STEM field, adcom expect you to ace GRE quantitative section, so you didn't gain any bonus on that part, either. Neither did you separate your application from others with your GPA.
Your research experiences are solid and should be a bonus point for you.
As far as rec letter goes, I'm not sure about India but US schools tend to put less weight on letters from a Chinese university because they have realized many professors let the students write whatever they want and sign it anyway. If your rec letter writers have connections to the school you applied to, that would be a big bonus point.
Do you have any teaching experience? That would help you get a TAship. Other than that, I would try to apply to some MS program and look for RAship or TAship if I were you.
Also don't give up hope on funding from Louisiana Tech and SUNY Binghamton! Some schools don't release funding info until later, like April or something.