The stock nosedived 19.7 per cent to Rs 253, its 52-week low level, on BSE.
On NSE, it tanked 20 per cent to hit one-year low of Rs 251.80.
VRL Logistics' promoters said yesterday that the proposed regional airline venture would be a "personal investment" of Rs 1,400 crore and would not impact the firm's balance sheet.
In a release, the company's Chairman Vijay Sankeshwar also emphasised that he would primarily play the role of a financial sponsor for the planned airline business.
"I wish to clarify that the proposed entry into airline business is a personal investment and at no point do we anticipate VRL's balance sheet being used for the venture," Sankeshwar said in a release submitted by the company to the stock exchanges.