Parakala had a chequered public life and an unsuccessful electoral career. Born into a political family, he became familiar with electoral politics since his childhood. His debut as a political activist started when he was elected as the President of the Jawaharlal Nehru University (JNU), New Delhi unit of the Congress Party affiliated students' organisation National Students' Union of India (NSUI). He contested the Students' Union Elections of JNU and lost to the CPI(M) affiliated organisation SFI candidate. However, it was for the fist time that NSUI polled a respectable number of votes for the central panel of candidates and could win a Councillor seat. Parakala's participation in May 1983 students' agitation on the campus agains the highhanded attitude of the university authorities lent political respectability to NSUI on the Campus. till then Congress affiliated NSUI was treated as political untouchable in the left dominated student politics of the university.
sanyukt raajya America mein cigarette kar alag-alag raajyon mein ek doosare se vyaapak roop se bhinn hai. udaaharan ke liye dakshin kairolina mein ek packet par keval 7 seint hai, jo desh ka nyoonatam hai, jabki road aailaind mein America ka uchchatam sitret tax prati packet $ 3.46 hai. Alabama mein, ilinois, misauri, New York shahar, Tennessee aur varjeeniya, kaauntiyon aur shaharon cigarette ki keemat par ek atirikt seemit kar laagoo hain.[87] uchch kar dar ke kaaran new jersey mein cigarette ke ek ausat packet ki keemat $ 6.45 hai,[88][89] jo abhi bhi cigarette ke ek packet ki anumaanit baahya laagat se bhi kam hai.

RFID praudyogiki ke kai upayogon mein se ek hai unka pustakaalayon mein prayog. is praudyogiki ne dheere-dheere pustakaalaya ki cheejon par (kitaabein, CD, DVD, aadi) paaramparik baarakod ki jagah lena shuroo kar diya hai. RFID taig mein pehchaan sambandhit jaankaari ho sakti hai jaise ek pustak ka sheershak ya saamagri prakaar, jiske tahat ek alag daataabes ki or ishaara karne ki aavashyakta naheen hogi (lekin yeh uttar America mein durlabh hai). yeh jaankaari ek RFID reedar dvaara padhi jaati hai, jo maanak baarakod reedar ko jo saamaanyat: ek pustakaalaya ki sanchalan mej par paaya jaata hai, pratisthaapit karta hai. pustakaalaya saamagri par paaya jaane wala RFID taig aamtaur par uttar America mein 50 mm X 50 mm aur Europe mein 50 mm x 75 mm ke naap ka hota hai. ise baarakod ki jagah ya usamein shaamil kiya ja sakta hai, jo staaf ko soochi prabandhan ka ek alag tareeka aur lene vaalon ko swayam seva pradaan karega. yeh ek suraksha upakaran ke roop mein bhi kaarya kar sakte hain aur paramparaagat vidyut chumbakeeya patti[28] ki jagah le sakte hain aur na keval kitaabein, balki sadasyata card mein bhi ek RFID taig lagaaya ja sakta hai.

aam taur par dendaari lekhon ke karmiyon dvaara gban rokane ke liye, durupayog ke khilaaf vividh jaanch maujood hain. kartavyon ka pruthakkaran ek aam niyantran hai. lagbhag sabhi companiyon mein check ke sansaadhan aur mudran ke liye ek junior karmachaari aur check ke punareekshan aur us par hastaakshar karne ke liye ek varishth karmachaari hota hai. aksar, lekhaankan software pratyek karmachaari ko keval unhein saunpe gaye kaarya ko nishpaadit karne tak hi seemit karte hain, taaki aisa koi jriya maujood na ho, jisse koi karmachaari - niyantrak bhi - akele koi bhugataan kar paae.
agar system vaanchhit degree ki vishvastata ke pratinidhitv karne ke liye paryaapt digital deta ka bhandaaran karta hai to parimaaneekaran truti ko kam kiya ja sakta hai. ek nirdhaarit enaalaug sanket ko theek-theek prastut karne ke liye kitni digital data ki aavashyakta hoti hai usaki jaankaari naaikvist-shaannon namoona prameya ek mahatvapoorn nirdesh pradaan karta hai.
rekheeya paripth ki tulana mein aankik paripth ko istemaal karne ki vajah iska ek laabh yeh hai ki shor[2] ke kaaran sanketo ka vightan naheen hota hai va unhein aasaani se bheja aur darshaaya ja sakta hai. udaaharan ke liye, 1 aur 0 ke kram mein banaaye huye lambe aavaaj ke ek sanket ko truti ke bina pun:nirmaan kiya ja sakta hai basharte sanket banaane ke dauraan paida hua shor itna na ho ki usaki vajah se 1 va 0 ko pahachaana hi na ja sake. seedi mein ek ghante ke sangeet ko kareeb 60 lakh dviaadhaari ankon (baainari dijits) ke roop mein sangraheet kiya ja sakta hai.

sooparakandaktiviti ki khoj, raipid ekal flaks kvaantam (RSFQ) ke vikaas sarkit praudyogiki ko sambhav kar pai hai joki traanjistar ke bajaay josefasan jankshan ka upayog karta hai. haal hi mein, aise shuddh optikl kanpyooting pranaali ko banaane ka prayaas kiya gaya, joki naunaleeneear optikl tatvon ka prayog karke digital soochana sansaadhit karne mein saksham hai. 
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