FOR years, the pundits at the country's bourses have been clamouring for the buyback of shares. A year-and-a-half ago, the then president of the Bombay Stock Exchange (BSE), M.G. Damani, had written to P. Chidambaram, the then finance minister, that buyback of shares would, at one stroke, infuse the much-needed vitality to India's lacklustre bourses. Each year for the last five years, several companies have been getting the enabling resolution to buy back shares approved in the annual general meetings.