Although the initial salary packages offered by IHMs are good, don’t expect a cushy package. Your salary package will depend on the company that you are going to work for. It can range between INR 15,000 - INR 30,000/month. You can also get increments depending on the company rules. You should prepare thoroughly for the interview. 

If you go through the management trainee program for some hostel you will get around INR 20,000 - INR 24,000. After completing the 2-year long trainee program you can expect to get a salary package of INR 40,000 - INR 50,000/month.

If you go through the management trainee program for food companies like KFC, Dominos, Starbucks then you can expect to earn around INR 25,000 for 2 years. After the training period, you will get salary packages around INR 30,000 - INR 40,000/month.  The retail company job profiles also have a similar pay. 

So, first, you should complete your management trainee program from a company that way you can start easily.