He entered politics through trade union activities and joined State Congress in 1938. In 1940, he became a member of the Communist Party of India (CPI). During his 40 years as a politician he was imprisoned for five years and six months and was in hiding for four and half years. He was a state secretariat member of the CPI in 1957.[14] He is the only living Keralite among the 32 members who left the CPI National Council in 1964 to form the CPI(M). He was Secretary of the Kerala State Committee between 1980 and 1992. Since 1985 he is the member of the CPI(M) Polit Bureau until he was removed as a party disciplinary action. He is the senior most leader of CPI(M) in India.

He initiated the Munnar eviction mission. Massive portions of land allegedly grabbed over the years by resort owners and multinational companies like Tata Tea Limited. Later, the demolition team landed in the city of Kochi, and other cities in Kerala and recovered huge parts of land. Then the mission stalled when it caught CPI(M) and even the team which led it was orphaned. The District Collector Raju Narayana Swamy, Inspector General of Police and the Person in charge were replaced. As the opponents claim, this may cause to have lost some credibility of the government. Meanwhile, Achuthanandan said that the Munnar mission would continue vigorously and extended to other areas[25][26][27]
RFID praudyogikiyon ko ab antim-upayokta anuprayogon mein sangrahaalayon mein bhi laagoo kiya ja raha hai. sen Francisco, California mein ek vigyaan sangrahaalaya, eksaploretoriam mein custom-dijaaind anuprayog "eXsport" iska ek udaaharan hai. sangrahaalaya mein pravesh karne vaale aagantuk ko ek RF taig diya jaata hai jise ek card ya haar mein lagaaya ja sakta hai. eXspot pranaali, aagantuk ko pradarshan ke baare mein jaankaari praapt karne mein aur giftashaup par ekatr ki jaane waali tasveerein lene mein saksham banaati hai. baad mein ve apne niji web prushth par ja sakte hain, jis par vishesh jaankaari jaise ki yaatra ki taareekh, dekhi gayi pradarshaniyaan aur li gayi tasveeron ko dekha ja sakta hai.[40]
vivotek ke sanyojan mein dairy queen ne bhi apne nae vafaadaari aur puraskaar kaaryakram ke hisse ke roop mein mobile phone par RFIDs ka prayog shuroo kar diya hai. apne phone par lagaane ke liye sanrakshak, ek RFID taig praapt kar sakte hain. sakriyn ke baad, phone mein pronnati aur koopan praapt honge, jise vivotek ke vishesh NFC upakaranon ke dvaara padha ja sakta hai.
haai-freekveinsi RFID ya HFID/HighFID taig pustakaalaya ki pustakon ya kitaabon ki dukaan ki traiking, gahanon ki traiking, pailet traiking, abhigm niyantran nirmaan, airline saamaan traiking aur paridhaan aur davaaon ki traiking. haai-freekveinsi taig, vyaapak roop se pehchaan baij mein prayukt hote hain jinhonne pehle ke maignetik-straaip card ka sthaan liya. dhaarak ko pramaanit karne ke liye in baij ko reedar se ek nishchit doori ke bheetar rakhana hota hai. American express blue kredit card mein ab ek HighFID taig shaamil hai. fravari 2008 mein, ameeraat airline ne London aur dubai havaai addon par RFID saamaan traiking ka pareekshan shuroo kiya.
theem park (jaise United Kingdom mein eltan taavars) RFID ka upayog karte hain taaki unhein raaid ke upayogakarta ki pehchaan karne aur park mein unke bitaaye samay ki ek DVD banaane mein madad ho. din ke ant mein fir ise upayogakartaaon ke liye khareedne ke liye upalabdh karaaya jaata hai. yeh upayogakartaaon ke liye svaichhik hai jo park mein unhein diye jaane vaale kalaai band ko pahan kar aisa kar sakte hain. 

upakaran pravaah ka lekhan aur deebaging, digital design ka utpaadan karne waali companiyon mein ek sthaapit engineering visheshata hai. upakaran pravaah aam taur par ek vistrut computer faail ya faailon ke set mein mit jaata hai jo yeh varnan karta hai ki kaise laujik ka bhautik roop se nirmaan karein. ismein aksar ek ekeekrut paripth ya mudrit sarkit board par traanjistar aur taar kheenchne ke nirdesh shaamil hote hain.

computer niyantrit digital system ko software dvaara niyantrit kiya ja sakta hai jo ki haardaveyar ko badle bina nae fankshan ko jodne ki anumati deta hai. aur aksar ise adyatan utpaad ke software ke dvaara kaarkhaane ke baahar kiya ja sakta hai. jisse utpaad ke design ki trutiyon ko graahak ke haath mein utpaad ke aane ke baad sanshodhit kiya ja sakta hai.
Nokia ke 2008 ke upakaran, 6212, mein RFID kshamataaen bhi hain. saksham haindaset ka upayog karte hue kredit card ki jaankaari ko sangraheet kiya ja sakta hai aur bank khaaton tak seedhe pahuncha ja sakta hain. is phone ko, agar mobile bhugataan ke liye ek vektar ke roop mein istemaal kiya jaae to ismein is maayane mein atirikt suraksha hoti hai ki ismein upayogakartaaon ko bhugataan ke praadhikrut hone se pehle ek paasakod ya pin darj karne ki aavashyakta hogi.[13]
Categories: 1923 birthsChief Ministers of KeralaCommunist Party of India (Marxist) politicians from KeralaIndian atheistsLiving peopleMalayali politiciansKerala politiciansIndian independence activists from KeralaTrade unionists from KeralaLeaders of the Opposition in KeralaChief ministers from Communist Party of India (Marxist)People from Alappuzha districtKerala MLAs 1967–70Kerala MLAs 1970–77Kerala MLAs 1991–96Kerala MLAs 2001–06Kerala MLAs 2006–11Kerala MLAs 2011–16
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