3.35 undergrad GPA. Too low for business PhD programs?

[Procodile]

 I graduated with a Bachelors degree in 2015 in Accounting from WVU. My undergraduate GPA was 3.35. I have no research experience, but have a master's in industrial relations from Cornell and my GPA in that program was 3.6

I have some work experience (1 year as an accountant in the public sector, and am currently in a leadership development program for human resources at a fortune 500 manufacturing company)

My initial GRE was a bit too low for top PhD programs, especially given my undergrad GPA.  I recently took a practice exam and got 163V, 156Q. I believe I can raise the quant score with some study.

 So given my stats, what are my chances of getting in a top tier PhD program for Fall 2020 admissions? Is there anything I can do (like retaking the GRE, for instance) that will improve my application for a PhD program? Any input will be truly appreciated.

[Noegenesis]

I wouldn't worry too much about your undergrad GPA, since you've improved in your master's. Raising your GRE, getting good recs, and writing solid statements of purpose will all raise your chances. Good luck!