SPECIALISTS in the areas of private banking, project finance, law, taxation and corporate finance will conduct a course in Hong Kong next month on ''Investing in India''. The regional business law journal, Asian Law Journal, is organising a full-day discussion at the Hong Kong Hilton, on September 9. The course is expected to explore and explain the issues that investors must confront in India and also the incentives, tax breaks and potential pitfalls for foreigners. ''So far, bankers, lawyers and international corporations have expressed interest,'' Antoinette Walsh, of Asian Law Journal, said. Course presenters will include Nishith Desai, an international tax and legal counsel and a specialist in international financial law; Hiroo Advani, senior partner in Advani and Co, an international law firm in India which offers specialist services in oil, gas and mergers, and Gregory Ullman, a partner in the group project finance firm, Chadbourne and Parke. Also appearing will be Ravi Almbah, a tax manager at Price Waterhouse, Hong Kong, who specialises in Far East tax practices; and James Winterbotham, president of Credit Capital, New Delhi, one of the largest private investment banks. Talks will cover foreign investment and trade policy, business incentives, foreign investment regulations, and will clarify the benefits of joint-venture deals and strategic alliances. There will also be a separate session for questions from participants. For more information, call Antoinette Walsh on 537-7131.