Pure nicotine liquid is available in India through various suppliers catering to industries such as pharmaceuticals, agriculture, and vaping. Companies like Nicotine India, The Supernic, and Inovogen Life Sciences offer high-quality pure nicotine liquid products. It's crucial to verify the reputation and credentials of suppliers to ensure product quality and adherence to safety standards. Additionally, follow all safety guidelines for handling and using pure nicotine liquid, as it can be a potent substance.