With the sudden intermittent rains (in Pune) in summer,
Dawned the realisation that attention needs to be paid to the wiper!
A decade old car,
Does need some time and care.
So, ordered a pair of wiper arms,
Not being content by just replacing the blades!
The next part (having fitted the new wiper arms and blades), goes like this -
Down the e-way,
On way to Bombay,
Cruising at 80 kmph,
When the heavens open up!
(
I am Khandala now - and that could be cause why I am singing? 
)
I pat myself on the back,
For having fitted the new wiper pack,
And guess what happens?
The wipers stop midships!! 
That's how this came to be.....
(
Luckily, after jiggling the stalks, one on the driver side came back to life within a few seconds; the rains also eased up after crossing Khandala. As it was day time driving, could continue the journey without much difficulty)
Now comes the question - how did this happen? I thought it was because I had goofed up while fitting the new wiper arms.
However, while the nut on the left wiper arm was still tight and intact, the arm was turning loosely while rotating it by hand; there was no action when the wiper was switched on - i.e. it appeared that the wiper arm was not connected to the motor at all.
It has to be the links, I thought, and proceeded to go ahead and do the repair by myself (
foolishly thinking that it would be simple affair)
A word of caution to those attempting to do this type of repair - please take care and read till the end before you start. Pictures taken on my mobile, so please bear with the quality of the snaps. Step 1 -
Remove the wiper blades (for those taking extreme precaution, wrap a piece of cloth at the end of arms after removing the blades, so that you don't accidentally scratch something - especially the windscreen).
Step 2 - Open the bonnet, remove the boot from the wiper arms and remove the nuts.

Step 3 - Raise the wiper arms and ease them off, by twisting them lightly.
Right, the easy part is done. Now comes the slightly difficult steps.
Step 4 - Remove the screws on the cowl - there are four screws on the engine side with washers and six on the windshield side.

Note carefully the location of the screws on the windshield side - there are two at the extreme ends, and two in between the slats (the screws appear like white / muddy spots in the picture). Unless you remove all the six screws the cowl can't be removed - applying force to detach the cowl without removing the screws will lead to damage.
Step 5 - Take care to remove all the hoses / fuel lines from their holders which are attached to the cowl (in the firewall area) - there were three in mine (fuel and AC hoses, windscreen wiper fluid tube). Two had broken earlier and one was missing - so in all there should be six of them.
Step 6 - Lift off the cowl from the body - you have to angle it against the windscreen and NOT PULL it away
(You'll be able to see the accumulated dust, grit and grime now - on the windshield as well as the exposed drain area beneath the cowl. This may be one of the reasons why a stale smell occasionally comes in the car after it has been driven through rain or left out in the rain. I cleaned out the muck with some soap / shampoo solution - but there was some dust / grit in the gap between the windshield and the A pillars, which is covered by a black plastic cover) 
Step 7 - Loosen the three bolts holding the wiper motor and linkage to the body of the car
Step 8 - Disconnect the wiring cable from the motor assembly (the locking clip is at the bottom side). Slightly twist / turn the linkage so as to maneuver and remove the assembly off the the body. This is the toughest part, and easier said than done. Be patient - it comes off easily, if you get the angle right.
(Once this was done, I could see that one link was broken and caused the wiper to stop working).
Step 9 - Remove the wiper motor by removing the three bolts holding it in place and one nut connecting the motor to the linkage.

In the picture above, the old linkage with the broken link is on the right. The new link is on the left, with the motor beside it.

Fit the new linkage to the motor and retrace the steps in the reverse order, to reassemble the wiper system.
The cover over the motor (to prevent moisture) needs to be changed / replaced in case it is worn / torn.
Other points to note -
1. The website from where I usually source the FIAT parts (99 rpm) does not offer the linkage separately. It has to be bought with the motor (Rs. 3,995/-)
2. Palios have two types of motors - LUCAS and DENSO (Magneti Marelli). Both assemblies are of different shapes - individual parts cannot be interchanged, but the whole assembly fits.
3. Linkage is available separately in aftermarket. You have to state the motor make to get the correct linkage. Prices varied from Rs. 1,500/- to Rs. 2,000/-.
4. The beading (pictures in step 4) between the cowl and windshield is NOT available, despite my visits to multiple shops. Since it was broken, it could be the reason why water must have entered the cowl resulting in rust and eventual breakage of the link. Take care to pull it out slowly so as not to break it.
5. The length of the wipers were an issue - different sites and different makes / brands state different sizes for Palio. Ultimately settled for 22" and 16" (bought a new brand - Valeo, which appears to be OK, as I was getting tired of the same Bosch / Syndicate brands). There is a small triangular gap at the base of the windshield (the base of the triangle is about 2" wide) when wipers work - so the ideal size would be 23" and 17", I guess.
6. Eagle eyed readers will note that the right (driver) side wiper side blades have their steel ribs poking out. This is the Bosch blade and hardly six months old. Don't know how it happened - probably the rubber reinforcement at the edges peeled off. I had fitted that just to check the difference between the new (Valeo) and the old (Bosch) wipers.
7. They will also note the right arm and left arm are not sitting in a straight line. I am waiting for the wipers to be used continuously in the rains, so as to ensure that the alignment is not the cause for the gap in wiping area as mentioned in '5' above.
Why the title?
Obviously, while fitting the new arms, I must have applied some pressure, causing the assembly to weaken.
Of course, it is entirely not my fault, as I am told that this is a common problem in Palios, going by the way linkages were available (in Pune).
Conclusion!
Every story has a climax and possibly an anti-climax.
Climax - completed the fitting, wipers were running well, doing a clean job! (
pun intended). Good Job Done - saved a few bucks by sourcing only the linkage and labour was free!! Satisfaction was enormous!!!
Anti Climax - there was a grating noise, when the wipers were working - after fitting the replacement linkage. It was not definitely there earlier?? Did I goof up again?
Had to do the above process once again, to see what has gone wrong. And, it was -
Reason - The nut connecting the wiper motor to the linkage (second picture in step 9) was grazing the linkage, causing the noise.
Suggested solution - slightly bend the connecting link to overcome this.
Having faced the wiper breakdown once, I wasn't prepared to risk it again.
Then began my troubles - none of the spares had the alignment that gave free movement.
Luck was on my side - was able to source an entire Magneti Marelli assembly - albeit used, it was in good condition (
as the pictures will reveal - much better than the new spare I had bought).
There is a world of difference between Lucas assembly and the original Italian DENSO, as can be seen in the pictures below -
The one at the bottom is from my car - broken.
The one in the middle is the original Magneti Marelli (just a little dust and grime on it)
The one on the top is a spare linkage - got it to repair (my) broken one and keep it - insurance against future breakdown!!
PS - Had some free time this week, to write, edit and upload the pictures. So if I can't reply to any queries immediately, please wait a while.
And, Valeo appears to be a reputable US brand as per my searches on the net show.....