Sanji post Paryushan refers to the period that follows Paryushan in the Digambar Jain tradition, known as the Dash Lakshana Parva (the Festival of the Ten Virtues). It is a 10-day observance, each day dedicated to one of the ten cardinal virtues: forgiveness (Kshama), humility (Mardav), straight forwardness (Arjava), purity (Shaucha), truth (Satya), self-control (Samyam), austerity (Tapa), renunciation/charity (Tyaga), non-possessiveness (Akinchanya), and celibacy (Brahmacharya). The aim is continued self-purification and reflection after the main Paryushan festival. The day-by-day focus is specific to the Digambar tradition; Śvētāmbara Jains typically observe an eight-day Paryushan that ends with Samvatsari, and do not have a widely celebrated “post-Paryushan” ten-virutes period in the same way Digambar communities do. For details on how Paryushan is observed differently by the two main sects, and the post-Paryushan emphasis in Digambar practice, you can read more here .