What are the Career options for a DTP operator in Ghaziabad, India?

I am a 33 years old graduate. I have done DTP (Desk Top Publishing) course which includes knowledge of CorelDraw, Photoshop, MS-Office etc. I am running my own business of Designing and Printing documents for last 10 years in Ghaziabad, situated near New Delhi, India. I design formats for various documents like Visiting cards, Letter-Heads, Invoices, Advertising Pamphlets, Wedding Invitation Cards etc. and get them printed. But I could never get as much clients as I expected. I want to know if I can do anything more with my qualification and my setup of Computer which includes a scanner, Broadband net connection and Laser printer. How can I increase my client network ? Are there any options for earning on Internet ? If there is not much scope in own business, then are there any jobs in my city for Graphic Designers like me ?