u/External-Ability-584

I have a sole proprietorship in India with GST and LUT, and file under 44AD. I know that we need to pay advance tax before Mar 15th. Does this payment need to be in one single shot or can we make a monthly payment starting April of that FY? For example, if I owe 12L in taxes, can I make 1L worth of tax payments every month before Mar 15th?