Sure sir, never ever giving up. Even I am already trying what you have said. Burning a port toggle code. In the pursuit, I fabricated a PCB but the problem was the crystal was not oscillating. I tried some 8 different crystals but in vain. So, my 'master pcb' failed, now trying to fabricate a new one.

And to get rid of all the clock problems, I thought to put a seperate crystal oscillator ( 4 pin device). I approached m/s.Mercy electronics, Adayar, Chennai, they said that the osc costs Rs.250/- (89c52 is Rs.80/- only in my Madurai sir). huff..

But still kicking hard with new pcb designing part sir. Have to fabricate it and make it as a Master board. Thank you so much sir.

Regards,
Vignesh.