You can get Samsung 46EH5000 for around 65-68k.But that is not a smart TV, it is a Full HD LED TV.
If smart TV is your preference then you can have a look at Samsung 40ES56000 for 65k or less.At the same time you can have a look at 40EH5000 if you want a 40" TV which is not smart tv for around 48k
Also try finding Samsung 40D5500 or 40D5900 which are smart TVs, they are very good and can be purchased for around 55k only, the thing is that the company has discontinued these models but still some dealers/retailers have it in stock and they are very good and I recommend them over the new models available right now.