Hi Vinayak! Welcome to TFK!
Looks like you've already gotten some good input here!
I second Olympia's suggestion, read those three links she posted for sure! I found that article to be extremely helpful when I started my first planted tank, and still do things in same way seven tanks later! RSSkylight has provided you with a few very easy-to-keep plants, as well!
Most people don't have to do very much differently to start growing plants in their tank - I've successfully grown plants in gravel, sand, and dirt-substrates - many people over-complicate things unnecessarily. The most important thing that you should look into is ensuring that the lights on your tanks contain a full-spectrum bulb, you'll need a rating of 6500k to support plant growth. Lighting is discussed in detail in part four of that article, here: A Basic Approach to the Natural Planted Aquarium--Part four
I hope this information helps you - it can seem a bit mind boggling at first, but it's really easy to do, and your fish will thank you for it! Please feel free to post with any additional questions you have - we're always happy to help, and again - welcome to our forum!