Domestic indigo did not allow alcohol. I bought from dmk on way to del, then my flight was to ccu after few hours. But the floor manager, did pack 2 bottles and few cloths in a carton and put it on checkin baggage. 1st they ask for extra charge. Maine bola, outside india sab salaam karte the, india mein aakar ye haal. Kuch saram karo. Raat bhar soya nahi tha. Indigo manager just smiled and didnt charge me extra.