Zylog Systems Chairman and CEO Sudarshan Venkatraman, its MD and COO Ramanujam Sesharathnam, company's whole time director Parthasarathy Srikanth, his wife Srikanth Sripriya and Sthithi Insurance Services -- a promoter entity of Zylog -- were barred from the market in June 2013.
Later in July 2015, Sebi had refused to lift the ban on the entities and said the prohibition for violating capital market norms would continue till further orders.
The latest order from Sebi's Whole Time Member Prashant Saran comes after the noticees raised some issues, including that relevant details were not provided to them by the regulator.
While advising Sebi to expeditiously complete the investigation, he also asked the noticees to co-operate with the regulator in the ongoing probe.
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According to Saran, it is also a legal contention put forth by Sripriya that she cannot be a PAC (Person Acting in Concert) with promoters.
Sripriya has stated that she had borrowed money from financial institutions for trading in Zylog shares and did not have any right to exercise voting rights on such shares.
"Therefore, to prove the allegations, it needs to be seen whether Sripriya (who acquired 8.43 per cent) was a PAC with the promoters in respect of the impugned acquisition," Saran said in the order.
Regulation 3(2) pertains to creeping acquisition of shares that could trigger open offer obligation.
It was alleged that Sripriya failed to make an open offer for the shares acquired by her in the company which had increased beyond the threshold limit of five per cent during the period between July 2012 to October 2012.
"Considering the various contentions put forth by the noticees, I am of the view that the same needs to be examined by Sebi in the light of observations made in the confirmatory order," Saran said.