""sraatha vignea samuth pannea cha avigyathey mrudhthey hani kuryaath anneana krishnaayaam eakaadasyam vidhukshayea""
as per this maharishi mareechi "s statement you may do on krishna patcha aekaadasi or amavasai day.until this time you should take maeals outside and also should not do special japam,pooja. And homam.says vaithee ka sri publisher in his book "sandeha nivaarani part one two book.