Google AdWords gives you the freedom to customize your financial plan as well as advertising goals. You can start a Google Adwords campaign with a nominal fee of INR250.00.
Once you started your campaigns you can set your daily budget, bidding amount, target keywords and target region. You can customize your campaigns for Google Searches as well as Google Partner websites.
Google provides you Keyword Tool, Analytics and various other tools to monitor and manage your campaigns effectively. It has got several automated tools to help out the beginners.
I'd therefore suggest you to get a go with Adwords and give the new dimensions to your Online Marketing.
But; dealing with the real world, you should actually take time for research over the targeted customers and their requirements. A quick relevance based comparison between the product and the market would help you create the better and most effective campaigns. The keywords and target customers selected can turn your fortunes around and makes all your money and time you are spending, worth it !!