There is a maintenance issue in drip you can try micro sprinkler or flood irrigation. if you for non ISI pipes and items it may cost you less than 1,5 lacs for you(no subsidy for non ISI)
You should go for drip irrigation for the following reasons.
Minimizes the water requirement overall.
Reduces the weeds which in turn will reduce your labour cost of weeding.
Optimal use of resources (Manures or Pesticides) etc.
Reduces the need for labour for flood irrigation.
Disadvantages of Drip Irrigation
High initial cost (you should check whether you will get subsidy for the entire land parcel. Also, check whether there is 100% subsidy to a certain extent of land and less % of subsidy thereafter)
Rats will damage the drip. Need to take precautions.
Clogging of Drip. Need to maintain properly.
In case, if you are not opting for Drip, you can still grow vegetables through Flood Irrigation or micro Sprinkler Irrigation as Sri has mentioned.