Freelancer — Legal Notice imposed on me under Section 72 (under Indian Contract act 1972)

Address:	INGBJOB (INDIA TECHNOLOGY) , 11 Binoba Nagar Tilak Nagar Main Road Indore MP, Madhya Pradesh
Website:	ingbjob.com

This is Ankit Kumar from Etawah (Uttar Pradesh), i belong to SC community and i was looking for the Job,
One day I got a call from "INGBJOB" regarding work from home job(Data Entry)/ Form Filling Jobs
I got a task of filling 500 forms in 5 days, my contract started 23/06/2021 at 13:36 PM till 28/06/2021 13:36 PM, as i won't be able to complete the task in stipulated time, the representative from the company called me on 28/06/2021 and told me that, "Either take Rs.1000/Per Day, extended time to complete the task or a legal notice will be issued for violating company's terms, but previously on Day 1 (23/06/2021) they told me that, at no extra charge you will be provided 5 days + 2days(extended ) for completion of task. but later they changed their terms on the phone call and demanded Rs.1000/Per day to extend the time given for Task completion.

Now i paid them, Rs.1180( Rs1000 + 180 GST) through Phonepe on UPI ID : "[protected]@upi" with transaction ID : T2106281444192701661753 on 28/06/2021 and now the time extended to 29/06/2021 23:06 PM, and now i've completed all the task of filling 500 forms and submitted them last night (29/06/2021), and there was a message displayed on top of the screen that, "Your workload is completed successfully" but from today morning (30/06/2021) i started recieving calls from some persons, pretending lawyers, they told me either pay Rs.6000+GST as the penalty or legal case will be imposed againt me under Section 72( Indian Contract act 1872)

I'm a Jobless person, i was looking for job only and they've asked my Aadhar card for registeration on whatsapp, i sent them, now they've issued a Legal notice againt me and a Unpaid bill of Rs. 7080(Rs 6000+1080GST) even when i've done all what they wanted from me...it is very much harassing for me, I've spent my 6 days for their work(Task compeletion) and they've promised me Money for my task( Rs. 20000) was promised for task completion as visible from their website !
but now they're asking me to pay the hefty amount of Rs.7080 and had sent me the Legal notice...
I'm Attaching Proofs of this fraud done against me ..they've my Aadhar Card and is the potential Threat for me ..
I request the Government of India (Ministry of Consumer Affairs) kindly look into the matter and save me !!
and i want all my money (which i've paid and what they've promised me to pay)this is a case of Harassment of Reserve Community

I'm in Big trouble now .. PLEASE SAVE ME !