Karmanaiva hi samsiddhim - Selected Verses of Bhagavad Gita: Chapter 03, Verse 20

'Selected Verses of Bhagavad Gita' recounts only selected verses of The Gita, which Krishna has said as it is. If you are pressed against time to go through around 700 verses of Bahgavad Gita, then this is the right place for you. This collection of verses is brought to you after years of listening to Bhagavad Gita from different sources. There is a separate post for complete list of verses.

Bhagavad Gita: Chapter 03, Verse 20

English:

Karmanaiva hi samsiddhim aasthitaa janakaadayah
Lokasangraham evaapi sampashyan kartum arhasi

Sanskrit: 

कर्मणैव हि संसिद्धिम् आस्थिता जनकादयः
लोकसंग्रहम् एवापि सम्पश्यन् कर्तुम् अर्हसि

Oriya: 

କର୍ମଣେଇବ ହି ସଂସିଦ୍ଧିମ୍ ଆସ୍ଥିତା ଜନକାଦୟଃ
ଲୋକସଂଗ୍ରହମ୍ ଏବାପି ସମ୍ପଶ୍ୟନ୍ କର୍ତୁମ୍ ଅର୍ହସି

Selected word meaning:
karmanaa - by work, eva - likewise, hi - certainly, samsiddhim - perfection, aasthitaah - situated, janaka adayah - Janaka and other kings, loka sangraham - welfare of world, eva - also, api - for the sake of, sampashyan - by considering, kartum - to perform, arhasi - deserve

Translation:
King Janaka and others attained perfection by performing duties. Similarly, for the welfare of world you should perform your duties.

Sources:
Sermons of Gita in Mahavarat by Sri B. R. Chopra
Sermons of Gita in Sri Krishna by Sri Ramanand Sagar
Bhagavad Gita by Sri Swami Sivananda of Divine Life Society
Bhagavad Gita As it Is by Sri Swami Prabhupada of ISKCON