(6)If the Board does not, within twenty-one days from the date of the deposit of a valid requisition in regard to any matters, proceed duly to call a meeting for the consideration of those matters on a day not later than forty-five days from the date of the deposit of the requisition, the meeting may be called-(a)by the requisitionists themselves;(b)in the case of a company having a share capital, by such of the requisitionists as represent either a majority in value of the paid-up share capital held by all of them or not less than one-tenth of such of the paid-up share capital of the company as is referred to in clause (a) of sub-section (4), whichever is less; or(c)in the case of a company not having a share capital, by such of the requisitionists as represent not less than one-tenth of the total voting power of all the members of the company referred to in clause (b) of sub-section (4).Explanation .-For the purposes of this sub-section, the Board shall, in the case of a meeting at which a resolution is to be proposed as a special resolution, be deemed not to have duly convened the meeting if they do not give such notice thereof as is required by sub-section (2) of section 189.