Holding period requirement for sale of equity shares requires compliance at filing, with limited conversion, bonus and scheme exceptions. Regulation 105 permits only fully paid-up equity shares held for at least one year prior to filing the draft offer document to be offered for sale; where shares arise from conversion of fully paid-up compulsorily convertible securities, the holding periods of the securities and resultant shares are aggregated and conversion must be completed before filing. The one-year requirement is excluded for government-controlled infrastructure entities, for shares or convertibles acquired under an approved restructuring scheme in lieu of long existing business and invested capital, and for bonus shares issued from free reserves and share premium (not from revaluation reserves or unrealised profits).