I wonder today how much will be the difference in production cost between DVD and BD.
Production costs are the same. Difference comes in for transfering/ remastering the old film prints into HD. Many Studios seem to be happy to rake it profits on sales of under 20,000 copies ( unless it is/was a Major hit) at over $25 a disc. There are specialist producers like Twilight Time etc who sell a limited 3000 copies a movie, selling at times for around $35. Do not know much about the Hindi/Indian movie production costs, to , make a judgement.
Interesting info, so if we can crowd source, we can potentially get a BD released for a movie of interest. How is this in India, since you have quoted all in USD.