There are certain situations where you really cant find a temple or purohit to perform upakarma. here i have uploaded document from shri sudha magazine’s simple upakarma procedure at home. Please find the procedure for rig veda upakarma as well as yajur veda upakarma in tamil
However it is not recommended to perform upakarma every year at home. Whenever possible follow proper procedure and do it with the help of achars.
Upakarma means beginning. And it is considered as the auspicious day for beginning the vedic studies.
Rig veda Upakarma is observed on the day in/on sukla paksha Shravan month which has Shravana nakshatra
Yajur veda upakarma is observed on sravaana maasa hunnime(pournami/full moon day)
Keshava nimma nama mangalyasutra tali
narayana nimma nama tali padakavu
madhava nimma nama surage sampige moggu
govinda nimma nama godhiya saravu ||1||
Vishnuve nimma nama ratna kundalagalu
madhusudana nimma nama manikyada haralu
trivikrama nimma nama vanki nagamurugiyu
vamana nimma nama Ole ekavaliyu ||2||
Shridhara nimma nama olle muttina hara
hrushikesha nimma nama kadaga gejjeyu
padmanabha nimma nama muttinaddikeyu
damodara nimma nama ratnada padakavu ||3||
Samkarshana nimma nama vanki tolayitu
vasudeva nimma nama olida tode
pradyumna nimma nama hastakankana bale
aniruddha nimma nama mukura bulaku ||4||
Purushottama nimma nama hosa muttina muguti
adhokshaja nimma nama chandra surya
narasimha nimma nama chouri ragati gondya
achyuta nimma nama muttina bottu ||5||
Janardana nimma nama jariya pitambara
upendra nimma nama kadaga gejjeyu
shrihari nimma nama kanchu ankiya tulasi
shrikrushna nimma nama naduvinodyanavu ||6||
Sarasijaksha nimma nama arasina enne hachchi
pankajaksha nimma nama kumkuma kadigeyu
purandara vithala nimma nama sarvabharanavu
niluvugannadiyali lalaneya torisuta ||7||