Reg what true_rasika said:
"5. The organizer Rajam Ramanathan made a request on behalf of the artistes to refrain from walking in / out during the songs."
I totally agree with the artistes on this one - it is very rude to keep walking in and out during a concert.
While I am happy that we Indians allow our children, even the very young ones to attend concerts (which is good - they need to be exposed to the music early on), I feel that it is time we learn to be polite to the artistes and the rasikas by maintaining some discipline in the auditorium. It is only in concerts by Indians that almost always there are children running around, some baby crying loudly for several minutes, some kid chomping on some chips/snacks (even though the auditorium rules say no food or drink inside), etc. I am tired of seeing this concert after concert. I have brought it to the attention of the local organization, but am yet to see the rules enforced. Are these too difficult to follow?
I myself have a two year old and so far, when we were not entirely sure if he'd listen to us, we (my husband and I) took turns attending concerts, while the other would stay home with our son. Right now we feel he will sit and listen for at least 20-30 minutes, so we have started taking him along - though we continue to take turns listening to the concert, with one person staying with him at the back of the hall, ready to run out any second.
Attending an opera/concert (western classical) was a difference experience altogether - the atmosphere was so formal and strict that when I felt a sneeze coming up, I was terribly scared!

We need not go to that extreme, but it is time we show some respect to the artistes on stage and to the other rasikas.
-------------------------
The second point I'd like to make is about rambling speeches. We Indians seem to love giving long speeches at inappropriate places!
I have been an active member of Toastmasters International - I joined mainly because the meetings were held during lunch time at the office and I thought I might learn a thing or two by being there. Well, I learnt more than that! To make a point relevant here, we Indians take a speech for granted - both content and timewise. Most people seem to think that if they know, broadly, what they are going to talk about, the speech will simply flow out. No, it won't! Even the best of speakers have to *practice* (which is why they are so good!). At Toastmasters, we have 4-6 minute speeches and 5-7 minute ones. Over time, we get a thorough feel for the length of a speech even without a timer, but for a long time (over 15-20 speeches in my case) I definitely needed a timer. And it helped to have a grammarian who'd note all the fillers and useless words I'd add in between, when my train of thought was lost ("um", "ah", "you know" and such).
In our concerts, when someone is introducting the artiste, they need to write down exactly what they are going to say. They need to practice how long the speech is going to be. They need to allow just a sentence or two for spontanity. They need to be crisp and short and make it professional (by planning every bit). It might be just a 3-4 minute speech, but done well, it will set the tone for the evening in a nice way. It is time we Indians pay attention to detail.