Sunita Williams in Delhi!

American astronaut of Indian origin Sunita Williams gestures during her interaction with Indian students at the National Science Center in New Delhi, India, Monday, April 1, 2013.

Astronaut Sunita Williams being presented with a paper scroll with greetings of students at the National Science Centre (NSC) in New Delhi.

US astronaut of Indian-Slovenian origin Sunita Williams gestures during an interaction with Indian schoolchildren at the National Science Centre in New Delhi on April 1, 2013.

Williams holds a world record for total cumulative spacewalk time by a female astronaut and has spent a total of 322 days in space on two missions.

"Space is an amazing place to be in... it feels like home now," Williams, 47, said during an interaction with students at the National Science Centre in Delhi.

Astronaut Sunita Williams shows a picture of space to students and teachers at the National Science Centre(NSC) in New Delhi.

Appealing to students to do something they really enjoy, Williams said: "I never envisioned to be an astronaut and had many failures, but ultimately I reached here... So my advice to students is that they find something they really like to do and should do it well and enjoy."