No, you will not be eligible for a rights issue if you purchase shares on the ex-date. Shares purchased on the ex-date will settle after the record date, making you ineligible for the rights issue. The record date is the date by which a shareholder must be registered with the company to be eligible for the rights issue.

Ex-date: The ex-date is the date on which the stock begins trading without the benefit of the corporate action (in this case, the rights issue).

Record date:The record date is the date when the company takes a snapshot of its shareholders to determine who is eligible for the rights issue.

Settlement: In India, the settlement cycle for stock purchases is T+1, meaning it takes one business day for the shares to settle and be credited to your demat account.

Eligibility: If you buy shares on the ex-date, the settlement will occur after the record date, meaning you will not be registered as a shareholder on the record date and will not be eligible for the rights issue.