Karthik Raja Karnan
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| Born | 30 May 1994 (age 31) Salem, Tamil Nadu, India |
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| Nationality | Indian |
| Education | B.E. in Electrical and Electronics Engineering, Knowledge Institute of Technology, Salem |
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| Occupation | Entrepreneur, Innovator, Social Reformer |
| Years active | 2016–present |
| Known for | Founder & CEO of MADique Technologies, World’s Smallest Idiyappam Machine |
| Notable works | Food Processing Machinery, Smiles of India Foundation |
| Awards | India’s TOP SME 100, Honorary Doctorate, National Youth Inspiration Award, etc. |
| Spouse(s) | Kowsalya (m. 2021) |
| Children | Kannukiniya |
| Parents | Karnan (father), Kaladevi (mother) |
| Religion | Hinduism |
| Website | madique.in |
Karthik Raja Karnan (born May 30, 1994) is an Indian entrepreneur, innovator, and the founder and CEO of MADique Technologies OPC Private Limited, a pioneering manufacturer of food processing machinery. He is widely recognized for transforming the food automation industry in India through his affordable and innovative machines that have empowered over 3,000 entrepreneurs, including physically challenged individuals and homemakers, to start their own food businesses.