New Delhi, Dec 23 Capital markets regulator Sebi will auction 28 properties of five companies, including Bishal Group and Sumangal Industries, on January 27, to recover money illegally collected from investors by these companies. Ravi Kiran Realty India, Mangalam Agro Products, and Purusattam Infotech Industries are the other companies, whose properties will be auctioned. Of the 28 properties being put …