List of Members of Fourth Lok Sabha From 4th March 1967 to 27th December 1970
| Sr. No. | Member Name | Gender | Constituency Name | State Name | Party Name |
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| 241. | Shri K. Anirudhan | Male | Chirayinkil | Kerala | Communist Party(Marxist) |
| 242. | Shri K. Hanumanthaiya | Male | Bangalore City | Mysore | Congress |
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| 243. | Shri K. Jaggaiah | Male | Ongole | Andhra Pradesh | Congress |
| 244. | Shri K. Kamaraj Nadar | Male | Nagercoil | Madras | Congress |
| 245. | Shri K. Lakkappa | Male | Tumkur | Mysore | Praja Socialist Party (PSP) |
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| 246. | Shri K. Narayana Rao | Male | Bobbili | Andhra Pradesh | Congress |
| 247. | Shri K. Rajaram | Male | Salem | Madras | Dravida Munnetra Kazhagam |
| 248. | Shri K. Ramani | Male | Coimbatore | Madras | Communist Party(Marxist) |
| 249. | Shri K. Subravelu | Male | Mayuram-SC | Madras | Dravida Munnetra Kazhagam |
| 250. | Shri K.K. Nayar | Male | Bahraich | Uttar Pradesh | Jan Sangh |
| 251. | Shri K.M. Abraham | Male | Kottayam | Kerala | Communist Party(Marxist) |
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| 252. | Shri K.M. Asghar Husain | Male | Akola | Maharashtra | Congress |
| 253. | Shri K.M. Koushik | Male | Chanda | Maharashtra | Swatantra Party |
| 254. | Shri K.R. Ganesh | Male | Andaman and Nicobar Islands | Andaman and Nicobar Islands | Congress |
| 255. | Shri Kamal Nath Tewari | Male | Bettiah | Bihar | Congress |