Here is the some pics on doubling, alignment at alakudi and TJ....
At Alakudi
Pic 1-5
Temporarily the TPJ line is connected to present loop line of pf1 so the alignment looks weird the line goes in '(' shape....so but dont worry folks the alignment will be changed as the new track is kept near PF1.... also a goods line will be coming...
more... on other side of Alakudi so after doubling have 4 tracks i.e.
1 (PF1) TPJ main line
2 TJ main line
3 (PF2) TJ loop line
4 goods line
At TJ
Pic 6-12
There is a bright chance of stable line this line will b connected to goods line of TJ...where as the TJ (down)line goes to PF1 grnd works is done near pf 1 and TPJ (up) line comes frm PF2 (I have attached it as last pic regarding it)3,4,5 will be loops.... previously it was assumed tht PF 2 is down line and PF 4 as up line....also no sign of pf4,5 extn as of now....