The whole mood of the vrata is that it’s about Kṛṣṇa, but here it’s just all about their inconvenience of fasting. So better they not fast. They will get more spiritual benefit.

http://seminary.bhaktivedantaacademy.com/content/uploads/sc/year2/noi102/2011-11-08-NOI-7.mp3 This course is part of Sastra-Caksus, Year 2 and consists of 25 lectures, available on: http://seminary.bhaktivedantaacademy.com/classes/noi-thematic/ Given in Bhaktivedanta Academy, Sridham Mayapur November-December 2011 The following are lecture notes briefly delineating its contents. Prayasa is disturbing to devotional service, but devotees still accept the duties of varnashrama. Varnashrama on