Digital Satellite Finder will give detailed information with signal strength/quality indication by way of bar graphs, which is good for precise alignment. The only thing is these parameters have to be keyed in manually, which will need dependence on internet sites. Price-wise also it is in excess of Rs2000 plus.
The same task can be done with Analog Sat Finder, and a portable TV + STB. Still the compactness of Digital Sat finder is preferred by some people.