Gst or tot

HI All,

My name is Yaswanth, I'm new to this forum.

I have a query regarding my dad bussiness regsitration.

My dad runs a provisional store in my home town (Andhra Pradesh) and we have turnover of 30,000+/day (1cr+/annum).

Now my dad want's to register his business under GST, but our CA suggesting us to regsiter under TOT instead of GST.

I need your valueble suggetions whether My dad should opt for GST or TOT.

Also please help me to understand if any advantages or disadvantages for both.