Affordable One Night stay

I’ll be traveling from Pune to Bengaluru by train for a hackathon happening in Marathahalli.

I'm looking for affordable accommodation (preferably under ₹500 per night) near Marathahalli or in areas with good connectivity to it. If anyone knows of budget hostels, dormitories, PGs, or other low-cost stay options, please let me know.

Any suggestions or tips would be greatly appreciated.