the process is like this .
first applicant or u have to fill online form and pay fee .then book the appointment .on appointment day applicant has to take print outs of application plus supporting documents and also they will submit their finger prints there .
when the embassy receive application they will send u mail .then they will call the sponsor and confirm the things like who is visiting u ,who is paying for trip , DOB.occupation etc etc.
when they make the decision they send the mail that application is done and sent back and also that documents can be collected when the visa center will call u or mail you .
this is the general practice every one here wrote the same thing .interviews are for student visa or something but i never heard that they interview visitors.hope this helps
Thank you so much sswsz. Yes the lawyer wants to charge £600

do you know the actual process? My dad said over there they have to go for an interview after submitting the forms? It's a bit worrying..I don't even know how the lawyer can help from here since everything has to be submitted there. I'm confused about the whole process.
Again thanks for your help so far