Hello Bhaskar,
First of all I'm not an astrologer, but I'm interested in astrology, just trying to learn. Your Jupiter is in 4th house in the nakshatra of Swathi, Lord is Rahu and sub lord is Venus. It is a functional benefic for you, so the Maha dasa will be good for you, you will earn money and fame in that dasa, but still you can expect some quarrels, nothing serious. You will be blessed with influential children.
Rahu is 12 th house, its not a good position for Rahu, it may give you ups and downs. I would suggest you pray to varaham, if possible learn Varaha Kavacham, if you are Hindu, to reduce the bad effects of Rahu, and also say rahu manta at leat 18 times, if possible 108 times.
Hope this helps, god bless you
Thanks
Astro