Hallo Prahlad,

I would use TLC274, or even TLC279, if it is available in your region. It's a LinCMOS quad operational amplifier and has become a standard type. You should be able to get it.
It's not a rail to rail type, but delivers slightly higher output voltage than TL084. Advantageously is also its rather low current consumption of about 0.95mA typically per Opamp.

In any case you should add RC filters of 22...47Ohm plus 10µF Tantal for the TLC279.

Also, do use 1N4148 or even Schottkys instead of 1N4004 arround ICL7660.

As Michael had already mentioned, do not use too low impedances in the feedback loop or at output of TLC279. Ultra low input bias current of TLC279 allows you to choose somewhat higher impedances, which can dramatically decrease over all current consumption!

Good luck,
Kai