Hi manishaagrawal, I found your piece on the random review page and thought I'd give it a look. I hope you'll find some of my suggestions useful!

What I liked:
As a relatively frequent traveler, I think this was a good topic to explore. Also, I feel like you've covered many aspects of what to look for when calling a taxi.

General things I noticed/specific suggestions:
"The car you are driving in" I feel like "driving" should be "riding", since you're not the one behind the wheel.

Spelling/Grammar:
make sure you capitalize the first letter of your sentence, even if this is just an informational article.
"services", in "when you take a taxi services" should be "service", since you're only talking about one service.
"they must be a to a great extremely competent driver." no need for the "a" here, and put a comma after "great".
          I feel like "great" and "extremely competent" have the same meaning in this context.
"Taxi Company" does not need capitalization.

Overall, this was an informational article and I thought it was a good read. Thank you for sharing, and keep writing!

My review has been submitted for consideration in "Good Deeds Get CASH!" .