Kotak Securities — car loan

I have taken one car loan form kotak bank, loan no 8916367 in name of poonam bhardwaj, due to non payment of emi kotak toy my car hr26bx9420
Without my permission and without singing any document.
When i ask them that i will pay remaining balance emi then they said you have to pay all emi +all interest i. E 2 lac nearby but actual emi was only for 1 lac.

They said we are taking you car and all over. They toy my car in 2017 mid.

Now from 6 months they stated calling me again and saying that my 1 lac is pending and i have to pay them, when i ask that they already take my car, now they are saying that car sell in loss and more 1 lac is due in your account and you need to pay other wise will log compalin agains you.

They started calling my day and night.

They have already toy my car then why i pay amount to them now, and even i dont have money that why they take my car na, why they calling me and threatening me time and again.

Please hlep me in this regards.