Rented house issue

I had taken 2 consumer loans but due to medical issue I missed 2 payments and I clearly informed bajaj that I will make the payment post the 16th of June. Rahul Kamble from Bajaj called and spoke to me very rudely and I clearly told him that I had email bajaj and asked for more time. He was adamant that I make the payment today. I didnt give in and my hindi is not that fluent so there was communication barrier. He said "aukaat nahi hain toh tune product kyon liya" It really pissed me off. So i yelled at him and he too yelled at me , the next thing was he abused "Saali, Randi, Behenchod etc.. Half of the things I didnt understand. Now I want to escalate this to higher authority and penalize him/ company for verbally abusing me. Since I am in Kerala, he wanted my Pune address to collect the product and also he wanted to slap me. Can you please tell me how I should proceed legally? Also, I have filed an e complaint in yerwada police station against this guy and didnt hear anything so far.