Not Sure if you meant Indians from India or Native American Indians so:
India's Olympic Medal Winners:
Medal
Name/Team
Games
Sport
Event
Silver Norman Pritchard 1900 Paris Athletics Men's 200 metres Silver Norman Pritchard 1900 Paris Athletics Men's 200 metre hurdles Gold National team 1928 Amsterdam Field Hockey Men's competition Gold National team 1932 Los Angeles Field hockey Men's competition Gold National team 1936 Berlin Field hockey Men's competition Gold National team 1948 London Field hockey Men's competition Gold National team 1952 Helsinki Field hockey Men's competition Bronze Khashaba Dadasaheb Jadhav 1952 Helsinki Wrestling Men's freestyle Bantamweight Gold National team 1956 Melbourne Field hockey Men's competition Silver National team 1960 Rome Field hockey Men's competition Gold National team 1964 Tokyo Field hockey Men's competition Bronze National team 1968 Mexico Field hockey Men's competition Bronze National team 1972 Munich Field hockey Men's competition Gold National team 1980 Moscow Field hockey Men's competition Bronze Leander Paes 1996 Atlanta Tennis Men's singles Bronze Karnam Malleswari 2000 Sydney Weightlifting Women's 69 kg Silver Rajyavardhan Singh Rathore 2004 Athens Shooting Men's double trap Gold Abhinav Bindra 2008 Beijing Shooting Men's 10m Air Rifle Bronze Vijender Singh 2008 Beijing Boxing Men's 75 kg Bronze Sushil Kumar 2008 Beijing Wrestling Men's 66 kg Freestyle Bronze Gagan Narang 2012 London Shooting Men's 10m Air Rifle Silver Vijay Kumar 2012 London Shooting Men's 25 Rapid Fire Pistol Bronze Saina Nehwal 2012 London Badminton Women's singles Bronze Mary Kom 2012 London Boxing Women's flyweight Bronze Yogeshwar Dutt 2012 London Wrestling Men's 60 kg Freestyle Silver Sushil Kumar 2012 London Wrestling Men's 66 kg Freestyle Source: http://en.wikipedia.org/wiki/India_at_the_Olympics
Native American Indian Olympic Medal Winners (Representing USA):
Jim Thorpe
Duke Kahanamoku
Samuel Kahanamoku
Pua Kealoha
Warren Kealoha
Billy Mills
Danielle Pelham
Tumua Anae
Mary Killman
Adrienne Lyle
I'm probably missing some with the Native American athletes, but hopefully someone will add to the answer.
This man participated in the Olympics. James Francis "Jim" Thorpe. Member of the Sac and Fox tribe. 1912 Olympics in Stockholm, Sweden. The Worlds greatest athlete. Born 05-28-1887 in Prague, OK. Died 03-28-1953.
bhaskaran
The athletes that won the silver medal in Ice dancing at the Sochi 2014 Winter Olympics are Tessa Virtue and Scott Moir.
Nikita Tregubov representing the Olympic Athletes from Russia won the silver medal in men's skeleton.
Ireland had 66 athletes in 14 sports and they won 5 medals including a Gold Medal, Silver Medal, and 3 Bronze Medals.
Sushil Kumar
vijender singh
Bindra - Abhinav was the first Indian sports man to win gold medal in Olympics.
Japan first sent athletes to the Summer Olympics in 1912 (Stockholm). Two Japanese athletes competed in athletics. Neither won a medal.
The country which, in the Rio 2016 Olympics, won the gold medal in men's coxless pair was New Zealand.Eric Murray and Hamish Bond were their athletes.
The country which, in the Rio 2016 Olympics, won the silver medal in men's coxless pair was South Africa.Lawrence Brittain and Shaun Keeling were the athletes.
Russia won the bronze medal in women's team épée at the Rio 2016 Olympics with competing athletes Tatiana Logunova, Violetta Kolobova, and Lyubov Shutova
The country which, in the Rio 2016 Olympics, won the bronze medal in men's coxless pair was Italy.Their athletes were Giovanni Abagnale and Marco Di Costanzo.