UK's BRCK Group rises after rejecting Atlas Holdings' takeover approach
** Shares of British construction materials distributor BRCK Group BRCK.L up 28.3% at 52.6p ** Company discloses that it rejected 65p-per-share indicative cash offer from Atlas Holdings on March 23 ** Board says proposal "fundamentally undervalued" the group, but Atlas has until April 28 to make a firm offer ** YTD, BRCK stock down about 5.7% (Reporting by Judes Joseph in Bengaluru) ((judes.joseph@thomsonreuters.com;))