Guys, I have finally installed the amby seal beam (Rs. 120) and OSRAM 60W H4 bulb (Rs. 80). I initially planned to install the avenger coil too. But due to not availability of the part, could not get it. But, the avenger coil was not even needed! THe stock coil supported the 60W bulb effortlessly at anything above 2k rpm. The is a slight dimming at idle rpm. And the brightness is phenomenal to say the least!
Everyone elsee out there on the road dips their headlight whenever I flash the high beam. So, I am very happy with my set up. Still, I have ordered the avenger 180 coil. When, I get that, I will try out a 100W bulb and I am hopeful, it will be supported.
So, my LED mods seem to have worked and freed up the required power for the headlight.
P.S. - Initially tried a shitty Lispart 60W bulb. Output was only slightly better than stock 35W headlight!