<div>Income tax department has attached four more properties of Nirav Modi group and CBI arrested PNB's internal chief auditor in connection with the case. </div>''<div><br />''</div>''<div>AIR Mumbai correspondent reports, Income tax department has attached four more properties of Nirav Modi group.&nbsp;</div>''<div><br />''</div>''<div>These include a farmhouse at Alibag worth Rs 13 crore and a Solar Power Plant with 135 acres of land at Karjat, Ahmednagar worth Rs. 70 crore.&nbsp;&nbsp;</div>''<div><br />''</div>''<div>According to Income tax sources, 34 more bank accounts/FDs of the Gitanjali group with the balance of Rs 1.45 Crore have been attached.&nbsp;</div>''<div><br />''</div>''<div>Meanwhile, Nirav Modi has refused to join the CBI investigation in this case, citing his business engagements, prompting the agency to issue a stern letter on Wednesday asking him to appear before it next week.&nbsp;</div>''<div><br />''</div>''<div>CBI has arrested PNB's internal chief auditor in connection with the case.</div>''<div><br />''</div>''<div>Nirav Modi, Mehul Choksi and others are being investigated by multiple probe agencies after the Punjab National Bank disclosed a fraud.</div>''<div><br />''</div>