depends on your carry style and how deep your pockets go, how you define budget gun....
with all this being said any imported new firearm these days is 80k - 100k .....and that too chinese...
if you are able to find someone who is willing to sell his personal weapon than you may get that cheap....
now if you want a weapon with which you don't have to play with and under 50k, then look for Trushot compact or DSA Nine (Glock lookalike) ....both are sturdy and reliable guns....
If you want something with which you can play then Glocks made by Haji Insaaf Shah & Royal Arms are proven to be reliable these days with lowest failure rate....to increase the reliability factor, spend an extra 10k and get original Mags for glock you can have that from local market.....spend a bit more out of your pocket and swap out the complete firing pin assembly ...that if you can have someone bring in the striker assembly from US / Canada in their checked luggage....it is just pins and springs so no issue at all with customs....