(1) During Tahwil the doa given below should be recited 365 or more times, the more recitation of this dua, the better it is
YA MOOALLEBAL Q0L00BE WAL ABSAR,
YA MODABBERAL LAYLE VANNAHAR
YA MOHAWWELAL HAVLE WAL AHWAL,
HAWWIL HALENA ELA AHSANIL HAAL.
(2) On the day of Navorz, following doa should be recited, as many times as possible.
ALLAHUMMA HAZEHI SANTUN JADIDTUN WA
ANTA MALEKUN KADIMUN, AS'ALOKA HUBBEKA WA HUBB MAN YOHIBBOK WA HUBB KULLE AMALIN YOKARREBONI ELAYY YA ZAL JALAALE WAL IQRAM.
(3) It is Mustahab to fast, have a bath, wear good clothes, apply "ATTAR also it is good to recite four rakat namaz after Namaz-e-Zohrain. (For more details read
Armagan-e-Islam page No. 185.)