Hitting back at the DMK over its legal notice seeking apology and Rs 500 crore in damages for his graft allegations against party president and Chief Minister M K Stalin, Tamil Nadu BJP leader K Annamalai on Monday sought a similar amount from the ruling party for making certain "baseless" allegations against him. In a statement titled "I am ready for legal action," uploaded on his Twitter page, the state BJP president also claimed there was 'proof' for alleged corruption in the Metro rail project in the earlier DMK regime and said "we are going to submit them to the CBI."