Shodashopachar (षोडशोपचार) is described in BrahmaVaivarta Purana (ब्रह्मवैवर्त पुराण) 4.8.10. i.e
Khanda - 4 (Sri Krishna Janma Khanda)
Adhyaya - 8 (Sri Janmastami-vrata-pujopavasa-nirupana Vows Worship and Fasting on Sri Janmastami)
Sloka 10 onwards.
You can go through Sanskrit text with appropriate translation.
Here is sample of Sankshipt Brahma Vaivarta Purana Hindi interpretation by Gitapress:
I'm here quoting text from here:
sopacarani sodasa phalany astau ca mistani
dravyany eva hi narada
puja-dravyani - things for worship; caruni - beautiful; sopacarani -
with worship; sodasa - sixteen; phalany - fruits; astau - eight; ca -
and; mistani - sweet; dravyany - things; eva - indeed; hi - indeed;
narada - O narada.
place there O Narada sixteen articles for worshiping the Lord eight
fruits and candies .
jati-phalam ca kakkolam
dadimbam sriphalam tatha narikelam ca jambiram
kusmandam ca manoharam
jatiphalam - jatiphala; ca - and; kakkolam - kakkola; dadimbam -
pomegranate; sriphalam - Sriphala; tatha - so; narikelam - coconut; ca
- and; jambiram - jambira; kusmandam - kusmanda; ca - and; manoharam - beautiful.
the eight fruits and candies being jatiphala kakkola pomegranate
sriphala coconut jambira kusmanda and manohara.
Texts 12 and 13
asanam vasanam padyam
madhuparkam tathaiva ca arghyam acamaniyam ca
snaniyam sayanam tatha
gandha-puspam ca naivedyam
tambulam anulepanam dhupa-dipau bhusanam cai-
asanam - a seat; vasanam - garments; padyam - padya; madhuparkam -
madhuparka; tatha - so; eva - indeed; ca - and; arghyam - arghya;
acamaniyam - acamana water; ca - and; snaniyam - water for bathing;
sayanam - a bed; tatha - so; gandha-puspam - fragrances and flowers;
ca - and; naivedyam - offering of food; tambulam - betelnust;
anulepanam - ointments; dhupa - incense; dipau - lamps; bhusanam -
oprnaments; ca - and; upcarani - articles; sodasa - sixteen.
and the sixteen articles for worship being a sitting place garments
padya madhuparka arghya water for acamana water for bathing a bed
fragrances flowers food-offerings betelnuts ointments incense lamps
and ornaments .
Next mantras provides the method for worshiping, quoting only English translation for further text:
wash his feet put on clean clothes perform acamana say the word svasti" sit on the seat .
place a pot there worship the five deities invite Sri Krsna, the Supreme Personality of Godhead to appear there .
invite Vasudeva Devaki Yasoda, Nanda Rohini Balarama Goddess Sasthi Goddess Vasundhara .
Rohini Brahma Asthami the Sthana-devata Asvatthama Bali Hanuman Vibhisana .
Krpacarya Parasurama Vyasadeva and Markandeya and then meditate on
Then a wise person should place a flower to his head and meditate on
the description of the Lord spoken in the Sama Veda O Narada please
listen and I will tell you that description which Lord Brahma‘ told
the Kumaras in ancient times.
I worship the Supreme Personality of Godhead who is an infant boy who
is splendid as a dark monsoon cloud who is very handsome whose lotus
face is smiling whom Brahma Siva Sesa and Yama glorified for hou many
days? whom the kings of sages cannot approach in their meditations
whom the munis siddhas and sons of Manu cannot attain whom the kings
of the yogis cannot imagine in their thoughts who is the greatest who
is without peer who is all-seeing witness.
The follower of this vou should thus meditate on the Lord Then
reciting mantras he should offer the flower and all the other articles
to the Lord Please hear these mantras.
Here are the mantras O Lord Krsna please accept this all- beautiful
jewel throne wonderfully decorated with graceful and colorful pictures
In brief, Shodash Upachara includes:
- Madhuparka (Panchamrit)
- Dhoop Dip