For any considering the two anecdotal only, speaking to an ex Jet Captain with friends in both Indigo and Go Air:
- Indigo very structured, 3-4 sectors per day and minimum (15 hour) rests, apparently the highest med renewal rate miss due hypertension, DGCA discussd and management openly admit they expect pilots to burn out and be replaced but operating within all required regs, maybe burnout not such a consideration for a short time contract position;
- those in Go Air apparently the "happiest" out of Vistara, Indigo and Spice.
Things continue to evolve, rumours Air India will be broken up by end October with Vistara taking the longhaul stuff and Spice the AirIndia Express, the domestic A320's/ATR's not really mentioned or unclear.
Cheers.