Nisha, 23, who would be in action in the under-55kg women kumite event, said as her preparation for the biennial sports extravanganza, she had been undergoing training since September last year under national coach P. Arivalagan.
"This is my first experience participating in the SEA Games and as a back-up member of the squad, there were intensive training as preparation to face the more experienced contenders. I am very pleased to be selected for the SEA Games even though I am feeling a bit nervous.
"At the beginning, I felt pressured due to the high hopes placed on me in the event, nonetheless with the guidance of the coach and intensive training, I am ready," she told Bernama.
On the expectation of the Malaysian Karate Association (Makaf) for a silver medal in the event, the karate exponent, who hails from Perak, said she was targeting of at least making it to the final irrespective of the medal colour.
According to Nisha, her selection to represent the country at the SEA Games was based on her success in winning a gold medal at the Makaf Senior Karate Championship in Johor in June.
Among Nisha's karate achievements were a bronze medal in the Kobe Osaka International (KOI) World Cup 2009, silver medal in the 2010 Regional KOI, silver medal in the 2009 Karate Istanbul Open and bronze medal in the Karate Indonesia Open 2010 and 2011.
She said she would not let her selection in the SEA Games go to waste and she would try her level best to bring home honours as had been done by previous national karate exponents.
"I will take the experience at the SEA Games as a valuable lesson for the coming championships, she said.