S. 13 : Denial of exemption-Trust or institution-Investment restrictions -Trust was restrained from converting shares held by it in private limited company to other forms of permissible investment by virtue of restraint order of High Court in case of settlors from whom it had received shares, it could not be held liable for violation of provisions of S. 11(5) read with S. 13(1)(d) for holding shares for more than prescribed period- Exemption cannot be denied .[ S.11(5) ,113(1)(d) ]