India, Jan. 20 -- The commerce ministry has suggested, as part of its Budget recommendations to the finance ministry, that people be allowed to buy just one litre (or a bottle) of liquor at duty-free shops when they enter India, down from the current two litres. It also wants to bar the purchase of cigarettes at duty-free shops for people entering India. Both measures are ostensibly aimed at minimising the quantum of non-essential imports, and also adopting the prevailing rules in some other countries. The United States and Singapore, for instance, allow only one litre of liquor to be bought into the country, although the latter also allows a litre of beer and a litre of wine in addition. Singapore bars the purchase of cigarettes at duty-free shops by people entering the country, although the US allows the purchase of up to a carton....