Y-Dus Technologies — fraud company

Address:	Surat, Gujarat, 143001
Website:	formfillinguk.com/work

I was applying for home based work on the internet, then on 15th feb i got a call from y-dus technologies that they provide home based work. They will give 1000 forms @ 30/- rs per form, which i have to complete in 10 days with 90% accuracy and at the time of payment 5000/- will be deducted as registration fees. They just told me that if i failed to complete the work i have to pay rs. 5000/- and multiple logins and internet change is prohibited. They send me link and asked to fill the detail and took digital signature. Those signature they pasted on the agreement and sent me that agreement. When i login on 16th feb no work was showing on the website. I text to the madam who created my id whole day i did the follow up, but she asked me to wait but didn't got any response. Then on 18th i saw forms in my profile. I worked whole day from my office with my office work from one internet connection and logout successfully. But on 20th, while i was working the site closed itself automatically twice, it was happened 2 -3 times earlier also. After when i tried to login it showed, ur id blocked due to multiple login. Now i told them what was actually happened, internet was working good, but the site closed automatically and then showed login page. But they are asking to pay 35000/- maintenance cost and 10560 to continue work. When i told them that it was not my fault, ur website closed itself. They send me a mail to consider it as a legal notice.
Now i searched on google about the company, i found it as a fraud company and many complaints and comments were added for the company. Many people are suffering with such kind of mental harrasment.
What should i do now???