You could organize a get-together of employees with family members. They can be given a tour of your workplace. A gift/token to all employees could be given.
Each employee can be given a sapling/ a tree named after achievers can be planted at a suitable site [in your factory/office]
An outdoor program/activity/picnic can be organized
With a budget of around Rs.350 per head you have the following broad choices
- arrange a day long outing /picnic (this may marginally exceed the budget if you include transport costs)
- An annual day program just in the evening with a loads of activities and followed by dinner.
- combine a CSR initiative with the outing to make it more meaningful and possibly very different for many
In my view you should try one of the three this year and the other options can be tried next year.
It would help to add to the fun if you can include a theme dressing, get a professional event manager to organize/ conduct the event. However if you plan to use it as a an opportunity to discover the organizational and personal skills of the employees then ensure that proper teams are formed for the event with you coordinating the whole thing.
Based on your choice you can work out the detailed plan for the day / evening.