Videocon in your phone means you have no option to call in your phone because of their poor network coverage. You cant go anywhere out with videocon sim, you can just roam in your city and nowhere else. I personally used videocon and my experience was not good.
If I go into another city it shows the icon of roaming and charge my calls at high rate. When I tried to contact the customer care they say that it would be solved soon but nothing happena like that. After getting irritated I just swithed to another sim. I do not recommend anyone to use this.