Here’s the response from the company on RPT questions I had posed. They also apologized for the close to 3 months delay in responding due to COVID and some email server error. I had given up hope 
- On what terms was the inter corporate loan of 0.60 Cr. extended to SPB Projects and Consultancy Limited (SPB-PC) in FY19?
The Inter Corporate Loan was extended only as a Short Term Loan to SPB-PC, at arm’s length terms, with rates of interest higher than the borrowing rates of the Company. The loan, along with interest, has since been repaid by SPB-PC in FY 2019-20.
- Why was this loan required given that SPB Projects and Consultancy Limited earns decent revenue on consultancy from SPBL as well as other paper mills?
This Short Term Loan was extended to SPB Projects and Consultancy Limited, towards their Working Capital Requirement.
- What is the status of the outstanding loan and interest paid?
As clarified in reply to Query No. 1, this loan has already been repaid by SPB-PC along with interest due.
- As per FY18 Annual report, inter corporate loans worth 7.60 Cr. had to be written off as doubtful debts. Why and due to which subsidiary / associate?
The Company had extended Inter Corporate Loans to Subburaj Group as part of our acquisition of M/s Subburaj Papers Private Limited (SPPL) in FY 2011-12, to facilitate the promoter of SPPL to discharge his obligations to the Banks.
This loan turned in to bad debt subsequently with the total failure of the business done by M/s Subburaj Group.
- Our company extended 7.01 Cr. loan to High Energy Batteries Ltd in FY16 (please refer to screenshot from FY16 Annual Report). What were the terms of the loan and why did HEB use the loan given for working capital to instead buy shares of Ponni Sugars?
HEB, a Group Company in which our Company has significant holdings, requested for an Inter Corporate Loan to tide over their immediate Working Capital Gap to execute substantial orders released by the Defence Departments. HEB had utilised the Inter Corporate Loan, given by SPB, for their Working Capital purposes only.
As noted in the disclosure in the FY 1516 Annual Report (also noted in your query), HEB, during that year, had sold their shareholdings (2,80,000 shares) in Ponni (Sugars) Erode Limited and with the proceeds, repaid portion of the Inter Corporate Loan back to SPB.