Well, it certainly can be found out which jobs are more in Delhi by the experiences of those who are looking for jobs and from job advertisements. And software development is engineering (creating things literally). So my query is reasonable I think and not at all uninformed.
Besides, PHP development isn't ITeS at all. ITeS means using IT tools to essentially do non-IT jobs like handling calls, processing transactions, researching, writing reports or designing graphics. Unless you think PHP development is only designing graphics and animations, it is not ITeS. PHP is a programming language. It is Turing complete. It is used to develop software applications. So there is no reason to not call it software engineering. Only because it pays relatively less than .Net or Java jobs doesn't make it a non-software engineering job. Technical defintions have got nothing to do with resource costs.
Anyway, I have solved my issue by learning and realizing that tools aren't a thing to become fans of. It is the actual job which is important. So .Net, Java or PHP, it doesn't matter. The job is of making software applications which are predominantly web-based.
Regards.