deepakam

[SrinathK]

Aro : S G3 M2 P D1 P N3 S
Avaro : S N2 D1 P M2 G3 R1 S

This is a one rAgA one kriti, Thyagaraja only special. A janya of pantuvarALi, this rAgA sometimes skips the D1 in the arOhanam to allow for P N3 S directly. SNPDP and SNPMGRS in the avarohanam are also possible (the non-linearity of gamaka phrasing, when extended to swaras, make this possible). Also SGRG is possible. All in all, there are a lot of dhATTu phrases possible up and down the scale.

These phrases all appear in the only kriti in this rAgA - kaLaLa nErchinA - https://www.youtube.com/watch?v=5Jc81XjOHsQ - the one and only GNB
https://www.youtube.com/watch?v=wBQeJPOYmcE - Panthula Rama
https://www.youtube.com/watch?v=Hr_IjjMvUDY - Radha & Jayalakshmi (Bonus! )

There are some recordings with AlApanas out there : https://www.youtube.com/watch?v=JIEGa2ogNjw

And sorry to disappoint you, despite the rather hot tempered aura of this raga, this is not the one that Tansen is said to have sung that nearly burnt him up and caused the atmosphere to heat up and set lamps ablaze.

Alternative spellings : dIpakam. I do not prefer the capital I due to it being identical to the small l (L).

[SrinathK]

In HM, the closest equivalent rAgA is a namesake -- deepak of poorvi thAT (why I mention this is because there are 6 rAgAs in HM with the same name in 6 different thATs). It's phrases are quite similar too. So here it is

https://www.youtube.com/watch?v=K7W-Aoesv4o - Ustad Ghulam Mustafa Khan

This post on quora was also informative. https://www.quora.com/What-is-the-Deepak-Raag