Hanuman Jayanti is observed in Gujarat on Naraka Chaturdashi day during Diwali festival. In 2017, Hanuman Jayanti date in Gujarat is October 18.
Hanuman Puja is observed during Diwali on Kali Choudas as KulDev Puja. Lord Hanuman is considered as Kuldev in many communities.
In Gujarat and Rajasthan and some other North Indian regions, Kali Puja is also observed on Narak Chaturdasi. It is also celebrated as Soundarya vriddhi divas (Roop Choudas). Yama Puja or Yama Tharpan is also performed on this day.
‘Abhyanga Snana’ (ritualistic oil bath) is one of the most preferred deeds of Choti Diwali. Early morning before sunrise, Narak Chaturadasi snan is performed.