COLOMBO, Feb 15 (Reuters) - Defending champions India thumped Pakistan by 61 runs in a grudge Group A match of the Twenty20 World Cup to secure their place in the Super Eight stage of the tournament on Sunday.

Returns have strained resources in a country that was already struggling to cope with a weak economy and the effects of a severe drought and two devastating earthquakes.

With rain looming on the big clash, Kishan struck a blistering 77 off 40 balls laced with ten fours and three sixes on a slow, spin-friendly pitch as India posted 175/7 before bowling Pakistan out for 114 to secure a 61-run victory and qualify for the Super Eights.

Pakistan’s former Prime Minister Imran Khan is pressing for his release, citing a deteriorating eye condition in prison, as his allies enter the third day of a sit-in protest in parliament.

Michael Clarke said India’s victory came as no surprise, pointing to the off-field noise surrounding Pakistan’s participation as an added distraction.

India's dominance over Pakistan in ICC T20 World Cups continues, with Sunday's victory marking their eighth. What began as a promising, balanced rivalry in 2007 has become a familiar pattern of Pakistani disappointment.