My impressions for brands sold in India:
1) Verbatim: Variable quality. Made in India stuff is not really better than local MBI discs.
2) Amkette: Last stock I got was rebranded CMC magentics media. Decent stuff.
3) Kodak: DVD+R is OPTODISC (very good media), DVD-R is MBI media with additional (proprietary) protective layer. The result being that the discs don't scratch as easily.
4) Moser Baer: MBI DVD+R is actually pretty good. DVD-R is not so good. Avoid Moser Baer non-Pro discs, they are similar dyes but have less protective layer which means they deteriorate and scratch very easily.
5) MAXELL: Very difficult to find but actually very good media.
6) Imation: Mostly made by MBI, a few by CMC. Average stuff, comparable to MBI.
7) HP: Discs are mostly from MBI but I have found these to have good reliability with iffy writer compatibility. What I mean is that if your writer "likes" this media, you're going to get excellent results. Otherwise, meh.
8) TDK: MBI media, no different.
9) Sony: Sony DVD-R these days is made in India. These are relatively decent media with good scratch protection. Sony DVD+R is IMO better, a lot of those are made in Japan or Taiwan. The Sony DVD+R (Made in Taiwan/Japan) is highly recommended, very good media and IMO next only to Taiyo Yuden and Japanese Verbatims.