Monthly reducing Rate of interest


KF Rookie
Hi All ,
I wanted to ask one thing about my personal loan from idfc.
I have taken a loan of 400000rs from idfc first bank with a monthly reducing Rate of 13% for a tenure of 4 yrs.
Can anyone please explain what will be my total amount at the end ?
and How much emi I should be paying with this roi .

I know bank provides all these information but I don't trust them .wanted a genuine opinion