I think I answered some of ur qs above.. As for OT.. I'm not sure.. I don't think we have OT.. Not many people stay back for long hours here except i think the finance peeps. Some stays back if they have conf calls with the overseas stakeholders etc.. But u can always join from home anyways..

Always on call.. Don't think so.. We do have outsourced support team who works on shifts. It really depends on which team you join.. Maybe some teams do have it but I'm really not sure. It's a no no for my team, that one I can confirm hehe