Uneven ripe

Why do some tomato's ripen like this? Most of them seem like they will be like this

 

Rotting off because they are in a low light level cardboard box ? Better in a tray spread out and facing max amount of su available?

 

I thought they ripe better when its dark and cool

 

I've actually had what looks like greenback on my outdoor toms this year, hard yellow flesh that just doesn't ripen.
I think I should have watered them more in July/ Aug, it was very dry at that time.

You could try putting a couple of bananas in the box with them.

 

Even I think it has something to do with water stress. Should have watered them more often

 

@Veepul, I've just realised you are in India, that makes me wonder why you took the toms off the plant green and didn't allow them to ripen on the plant.

 

Well more than half of them started getting blossom end rots. I tendered them like my babies and yet that was that.

My observations were

1) Indeterminates should never be grown in pots as much as possible.
2) They grow so rapidly that the soil is simply exhausted.
3) When I emptied one pot there was so much roots there that I felt I really didn't do justice to them by growing in pots
4) Pruning is more important especially in pots. At one point I had 100 tomato's in just one pot because I didn't want to cut any shoots.
Should have used tomato cages but none available in my country. 2 huge stems broke midway coz of their heavy weight and it was sad to see.

I then used one of the stem just as a decoration in the bathroom.

 

Yep, those toms dont look fully formed, on those stems, to me.

I think you need to do a lot more pinching out of side shoots etc. and stop the plants after 4 or 5 trusses if growing in pots.
Feed is important when growing in pots, and I'm guessing you should be watering like crazy if its hot.
Some times in mid summer we can need to water twice a day even in the UK.

Blossom end rot is a sure sign of underwatering and feeding.

 

I couldn't agree more with the pinching and not letting grow more than 5 trusses part.

I have learnt that and will try to improve the next batch.

And your right, I did water them a lot. Like 3 times a day sometimes. Couldn't believe they need so much.

Sunlight can be very harsh here at times.

 

Yes, its difficult for us to totally understand your growing conditions.
Its never that hot for that long over hear so we tend to have to get the plants through the cold weather before we get anything similar to what you may be experiencing.