I would like have an internet connection to my pc

I am having personal computer in my home in Madapur Village,T.Narasipur Taluk,Mysore District, Karnataka state,India
I would like have an internet connection to my pc
In my home airtel,reliance,bsnl mobile are covering
what would would be the tariff details
Now i am having bsnl connection(landline)
I would like to have reliance landline or mobile with internet