if i do petrolium engineering than what would be my first sallery package?

yes it depends upon College form where you are doing Engineering else average package would be around 3.5 - 4.0 lakhs per annum.

it depends on the company but the lower bound is definitely going to be 3.5lpa. companies like SHELL give as high as 12lpa.

if u do petrolium for some reputed or top college u can get package of 5.5-7.5L colleges like mit pune..........etc are some top colleges of india for petrolium this year the average package was5.5 to 6.5L some even got7.5L,just visit the site and check out u can get admission there if u want just c

Salary package would depend upon which organization you get into. It is difficult to forecast the salary scenario of 4 years from now.

here is th data 4 ua- Starting 2.0 to 2.75 lakhs on an average 5 years + experiance 6 to 6.5 lakhs

it depends upon College form where you are doing Engineering else average package would be around 3.5 - 4.0 lakhs per annum.